Have you ever kept your AUR packages up to date with garuda-update -a?
I hope that’s a joke. Do you actually know what you are doing?
Open /etc/makepkg.conf with an editor, for example with micro:
sudo micro /etc/makepkg.conf
Scroll down to the “OPTIONS” section:
OPTIONS=(strip docs !libtool !staticlibs emptydirs zipman purge debug lto)
and put a “!” before debug, like this:
OPTIONS=(strip docs !libtool !staticlibs emptydirs zipman purge !debug lto)
then save with Ctrl + S and close with F10.
Then try again:
garuda-update -a