Yeah, I search the AUR not to discover packages, but to see if something I want to install is in there, if it is I check the PKGBUILD and make sure none of the sources/commands/patches are suspicious.
People need to remember it’s not some carefully vetted app store and that they need to be the ones vetting any packages they install and any changes when updating.

To add RTX 30XX series doesn’t support AV1 encode, only decode, so any AV1 encoding would have to be done on the CPU (better to use h.264 or HEVC for hardware encode in OBS)