I just tried something as simple as updating the live iso (dragonized) and I can't even run Garuda assistant. The culprit is the package whoogle-git wich suffers from an invalid key. The full message is
Checking integrity...
Error: whoogle-git: key "1949E60D299007430C94DC0657F3D9CC660431DD" is unknown
Error: key "1949E60D299007430C94DC0657F3D9CC660431DD" could not be looked up remotely
Failed to commit transaction:
invalid or corrupted package: