Heres a programming (merge sort?) trick applied to troubleshooting GPOs: turn off half the policies in the GP, did the issue go away? if yes its in the turned off half, if no, turn off another half of the active policies, repeat

Tell that to the college anti-war protestors getting beat by police for literally using their first amendment right to protest and speak, and NOT blocking movement to classes at all.

Worst thing is you may have to learn downgrade commands on PopOS if a game breaks with driver updates.

Sounds like a job for a rasberry pi with pihole installed: https://pi-hole.net/