If I download a file from a questionable source: scan it (with clamscan) If I run an executable I don’t trust: use a locked-down (with firejail)

No matter the antivirus, if you keep downloading and running questionable files, you run the risk of viruses. I would say that browsing patterns are more important than any antivirus.

Fully usable with NVidia. I can play all the games I want at the same graphical settings as Windows. (Nvidia 1080)