What I have found the easiest is to change the uid in Garuda as follows:
- Exit Garuda, and login as root (important not to be already there as 'username' - where username is your name)
- enter usermod -u 1002 guest
- enter groupmod -g 1002 guest
- enter usermod -u 1000 username
- enter groupmod -g 1000 username
The logout and login in as 'username' and see if it got it 