That’s perfect and quite common reason to choose Linux, since we wanna play our games, not dealing with OS broken by malware

Anyway, it doesn’t mean you can just run blindly anything that comes down from The internets, even if that looks legitimate.
There was big incident in AUR with distributing CHAOS RAT (TBH I just discovered it accidentally myself), but other user repositories might contain virtually anything hidden by “cutting-edge” packages.
That’s why I’m usually sceptical about niche distros, if they provide binary packages with neither archived source nor tracing how they made. Who knows motives of maintainers or who pays them or who may enforce them to do “small patch”. Regarding gaming stuff I’d trust original developers more than third party packages in general.
Yes, I’m a bit paranoid. Stay vigilant, brothers.