i got the same error message ive think maybe they swapped it to a user service not a systemd service.
Did you run sound on the Monitor or external Speaker?
Audio:
Device-1: Advanced Micro Devices [AMD/ATI] Navi 21/23 HDMI/DP Audio
driver: snd_hda_intel v: kernel pcie: gen: 4 speed: 16 GT/s lanes: 16
bus-ID: 2d:00.1 chip-ID: 1002:ab28 class-ID: 0403
I would try to disconnect the power cord from the PC press few times the power button wait few minutes and start the Pc again. (called cold boot)
My sound is working even with this error message. May a AMD Firmware issue.
see here this topic: