That's a bit disingenuous. The actual legislation doesn't mention this issue at all, and one of the co-authors has even come out and said that the ATF's reliance on that law is perversion of the intent of the legislation.
Anything involving a constitutional right should have significantly more say by elected officials and significantly less say by agency bureaucrats.
No other constitutional right is as heavily-regulated as the Second Amendment. The idea that one needs to ask permission from the government before exercising a constitutionally-protected right is anathema the entire concept of inherent rights.
Are there any actual statistics that show that this new regulation will decrease illegal gun sales? AFAIK law-abiding citizens already follow the law. All this will do is once again increase the burden placed on people trying to practice one of their constitutional rights. Unless you can provide statistics that indicate this will actually work?
Fallout 4 already works pretty well on deck vanilla, even better with some mods. But it's always good news when devs take the steam deck into consideration. Also good news for linux gaming in general.