As other people have stated, you do not need to worry about the AUR issue specifically since Bazzite is not based on Arch Linux. Also, unless you are building Node based application (node being a JavaScript based runtime environment), you shouldn’t have to worry about that one.
That said, these platforms are just the latest targets because they have huge enterprise user bases. Any centralized repository has the potential for vulnerability, especially ones with unvetted user submissions.
As other people have stated, you do not need to worry about the AUR issue specifically since Bazzite is not based on Arch Linux. Also, unless you are building Node based application (node being a JavaScript based runtime environment), you shouldn’t have to worry about that one.
That said, these platforms are just the latest targets because they have huge enterprise user bases. Any centralized repository has the potential for vulnerability, especially ones with unvetted user submissions.