That grub version, causing so many problems to so many users has been recently rolled back in our repo to the previously working version. So in my opinion you need to find a way to update.
What I suggest you could do is:
- chroot into your system with your live USB, either using the relevant tool in the Garuda Welcome or with this manual procedure https://forum.garudalinux.org/t/how-to-chroot-garuda-linux/4004 (only the initial part where you chroot into the system, not yet the grub installation).
- from inside the chroot, perform a
garuda-update. This should downgrade the grub package. - from inside the chroot
micro /etc/default/grub, addibt=offat the end of the line starting with GRUB_CMDLINE_LINUX_DEFAULT, save and exit - from inside the chroot reinstall the grub into your system and update-grub (the second part of the tutorial, or also with the tools in the iso)
- exit from the chroot and reboot