ublock origin works fine for me on firefox. i use freetube (desktop client), but when i use the youtube website i don’t have ad issues.

unofficial open source nvidia drivers

i’ve had that before, it’s probably a java version issue

1. install jre8-openjdk with pacman

2. set java version for 1.8.9 to java 8, this can be done in instance settings depending on the launcher. prism launcher can auto-detect java

old minecraft versions use java 8, newer ones use java 17