Lag / stutter in games on kernel linux-tkg-bmq with a Ryzen CPU

Yesterday, I have done my daily work with the new xanmod kernel, no issues, everything went smooth. Today, the system crashed while updating. I had this kind of crash once with the zen kernel, too. Here is the output of inxi -Fxxxa for this machine:

System:    Kernel: 5.10.7-xanmod1-1 x86_64 bits: 64 compiler: gcc v: 10.2.0
           parameters: BOOT_IMAGE=/@/boot/vmlinuz-linux-xanmod
           root=UUID=b2af4f73-857e-4594-800b-edf146a43b6e rw rootflags=subvol=@ quiet splash
           rd.udev.log_priority=3 vt.global_cursor_default=0 systemd.unified_cgroup_hierarchy=1 loglevel=3
           Desktop: KDE Plasma 5.20.5 tk: Qt 5.15.2 info: latte-dock wm: kwin_x11 dm: SDDM
           Distro: Garuda Linux
Machine:   Type: Desktop System: Gigabyte product: X470 AORUS ULTRA GAMING v: N/A serial: <filter>
           Mobo: Gigabyte model: X470 AORUS ULTRA GAMING-CF v: x.x serial: <filter>
           UEFI: American Megatrends v: F41 date: 07/22/2019
Battery:   ID-1: hidpp_battery_0 charge: N/A condition: N/A volts: 4.2/N/A
           model: Logitech G Pro Wireless Gaming Mouse type: N/A serial: <filter> status: Full
CPU:       Info: 6-Core model: AMD Ryzen 5 1600 bits: 64 type: MT MCP arch: Zen family: 17 (23)
           model-id: 1 stepping: 1 microcode: 8001138 L2 cache: 3 MiB
           flags: avx avx2 lm nx pae sse sse2 sse3 sse4_1 sse4_2 sse4a ssse3 svm bogomips: 76799
           Speed: 1550 MHz min/max: 1550/3200 MHz boost: disabled Core speeds (MHz): 1: 1550 2: 1550
           3: 1550 4: 1550 5: 1550 6: 1550 7: 1550 8: 1550 9: 1550 10: 1550 11: 1550 12: 1550
           Vulnerabilities: Type: itlb_multihit status: Not affected
           Type: l1tf status: Not affected
           Type: mds status: Not affected
           Type: meltdown status: Not affected
           Type: spec_store_bypass mitigation: Speculative Store Bypass disabled via prctl and seccomp
           Type: spectre_v1 mitigation: usercopy/swapgs barriers and __user pointer sanitization
           Type: spectre_v2
           mitigation: Full AMD retpoline, IBPB: conditional, STIBP: disabled, RSB filling
           Type: srbds status: Not affected
           Type: tsx_async_abort status: Not affected
Graphics:  Device-1: AMD Ellesmere [Radeon RX 470/480/570/570X/580/580X/590] vendor: Tul driver: amdgpu
           v: kernel bus ID: 09:00.0 chip ID: 1002:67df
           Display: x11 server: X.Org 1.20.10 compositor: kwin_x11 driver: amdgpu,ati
           unloaded: modesetting alternate: fbdev,vesa display ID: :0 screens: 1
           Screen-1: 0 s-res: 3840x1080 s-dpi: 96 s-size: 1016x285mm (40.0x11.2") s-diag: 1055mm (41.5")
           Monitor-1: HDMI-A-0 res: 1920x1080 hz: 60 dpi: 96 size: 510x290mm (20.1x11.4")
           diag: 587mm (23.1")
           Monitor-2: DVI-D-0 res: 1920x1080 hz: 60 dpi: 92 size: 531x298mm (20.9x11.7") diag: 609mm (24")
           OpenGL:
           renderer: AMD Radeon RX 480 Graphics (POLARIS10 DRM 3.40.0 5.10.7-xanmod1-1 LLVM 11.0.1)
           v: 4.6 Mesa 20.3.3 direct render: Yes
Audio:     Device-1: Creative Labs EMU20k2 [Sound Blaster X-Fi Titanium Series] driver: snd_ctxfi
           v: kernel bus ID: 03:00.0 chip ID: 1102:000b
           Device-2: AMD Ellesmere HDMI Audio [Radeon RX 470/480 / 570/580/590] vendor: Tul
           driver: snd_hda_intel v: kernel bus ID: 09:00.1 chip ID: 1002:aaf0
           Device-3: AMD Family 17h HD Audio vendor: Gigabyte driver: snd_hda_intel v: kernel
           bus ID: 0b:00.3 chip ID: 1022:1457
           Device-4: Licensed by Sony Entertainment America Rocksmith Guitar Adapter type: USB
           driver: hid-generic,snd-usb-audio,usbhid bus ID: 1-3:2 chip ID: 12ba:00ff
           Device-5: Logitech Webcam C270 type: USB driver: snd-usb-audio,uvcvideo bus ID: 1-4:3
           chip ID: 046d:0825 serial: <filter>
           Device-6: C-Media CM108 Audio Controller type: USB driver: hid-generic,snd-usb-audio,usbhid
           bus ID: 1-7:4 chip ID: 0d8c:013c
           Sound Server: ALSA v: k5.10.7-xanmod1-1
Network:   Device-1: Intel I211 Gigabit Network vendor: Gigabyte driver: igb v: kernel port: f000
           bus ID: 06:00.0 chip ID: 8086:1539
           IF: enp6s0 state: up speed: 1000 Mbps duplex: full mac: <filter>
Drives:    Local Storage: total: 922.22 GiB used: 234.65 GiB (25.4%)
           SMART Message: Unable to run smartctl. Root privileges required.
           ID-1: /dev/sda maj-min: 8:0 vendor: Samsung model: SSD 840 EVO 250GB size: 232.89 GiB
           block size: physical: 512 B logical: 512 B speed: 6.0 Gb/s serial: <filter> rev: BB0Q
           ID-2: /dev/sdb maj-min: 8:16 vendor: SanDisk model: SDSSDHII240G size: 223.57 GiB block size:
           physical: 512 B logical: 512 B speed: 6.0 Gb/s serial: <filter> rev: 00RL
           ID-3: /dev/sdc maj-min: 8:32 vendor: Western Digital model: WD5000AAKS-08V0A0 size: 465.76 GiB
           block size: physical: 512 B logical: 512 B speed: 3.0 Gb/s serial: <filter> rev: 1D05
Partition: ID-1: / raw size: 50 GiB size: 50 GiB (100.00%) used: 27.18 GiB (54.4%) fs: btrfs
           dev: /dev/sda3 maj-min: 8:3
           ID-2: /boot/efi raw size: 512 MiB size: 511 MiB (99.80%) used: 28.3 MiB (5.5%) fs: vfat
           dev: /dev/sda1 maj-min: 8:1
           ID-3: /home raw size: 50 GiB size: 50 GiB (100.00%) used: 27.18 GiB (54.4%) fs: btrfs
           dev: /dev/sda3 maj-min: 8:3
           ID-4: /var/log raw size: 50 GiB size: 50 GiB (100.00%) used: 27.18 GiB (54.4%) fs: btrfs
           dev: /dev/sda3 maj-min: 8:3
           ID-5: /var/tmp raw size: 50 GiB size: 50 GiB (100.00%) used: 27.18 GiB (54.4%) fs: btrfs
           dev: /dev/sda3 maj-min: 8:3
Swap:      Kernel: swappiness: 10 (default 60) cache pressure: 75 (default 100)
           ID-1: swap-1 type: partition size: 7.81 GiB used: 0 KiB (0.0%) priority: -2 dev: /dev/sda6
           maj-min: 8:6
           ID-2: swap-2 type: zram size: 1.3 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram0
           ID-3: swap-3 type: zram size: 1.3 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram1
           ID-4: swap-4 type: zram size: 1.3 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram2
           ID-5: swap-5 type: zram size: 1.3 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram3
           ID-6: swap-6 type: zram size: 1.3 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram4
           ID-7: swap-7 type: zram size: 1.3 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram5
           ID-8: swap-8 type: zram size: 1.3 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram6
           ID-9: swap-9 type: zram size: 1.3 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram7
           ID-10: swap-10 type: zram size: 1.3 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram8
           ID-11: swap-11 type: zram size: 1.3 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram9
           ID-12: swap-12 type: zram size: 1.3 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram10
           ID-13: swap-13 type: zram size: 1.3 GiB used: 0 KiB (0.0%) priority: 32767 dev: /dev/zram11
Sensors:   System Temperatures: cpu: 35.6 C mobo: N/A gpu: amdgpu temp: 61.0 C
           Fan Speeds (RPM): N/A gpu: amdgpu fan: 592
Info:      Processes: 369 Uptime: 16m wakeups: 2 Memory: 15.64 GiB used: 3.74 GiB (23.9%) Init: systemd
           v: 247 Compilers: gcc: 10.2.0 clang: 11.0.1 Packages: pacman: 1845 lib: 545 Shell: fish
           v: 3.1.2 running in: alacritty inxi: 3.2.01
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