Try with lts kernel and see if issue persists?
sudo pacman -S linux-lts linux-lts-headers
then while booting from grub screen goto advanced options
→ select linux-lts
IF this works make linux-lts
the default kernel you boot with using garuda boot options
GUI.
If this doesn’t help try downloading
sudo pacman -S alsa-utils
and check using
alsamixer
that all output sounds are maxed when you are facing the audio issue and that nothing is mute.
Also make sure that correct sound card is selected while this issue is happening,