6.14.0-2 is current version so not a downgrade but reinstall.
I did start to suspect some user files since downgrade didn’t help, maybe just delete those files and reboot could have worked (if they are recreated).
I solved it with this
EDIT: For someone else searching for a solution, removing ~/.local/share/kwalletd will remove your passwords so if you use kwallet you should probably not go that route