Automated command-line jobs, in my case, which are technically not random but still annoying, because they don’t need to show a window at all. Interestingly, the one thing I can get to absolutely not pop up any window ever are Perl scripts using Win32::Detached . . . which means that it is possible, but Microsoft doesn’t bother to expose such a facility.

Eh, Gentoo is pretty quiet most of the time once you’ve got it installed. After that, you just have to keep an eye on it and make sure it doesn’t go off its meds (although once every few years, it will come up with a weird and wonderful way of doing so that you can’t block.)

I wouldn’t say the proprietary nvidia drivers are any worse than the open-source AMD drivers in terms of stability and performance (nouveau is far inferior to either). Their main issue is that they tend to be desupported long before the hardware breaks, leaving you with the choice of either nouveau or keeping an old kernel (and X version if using X—not sure how things work with Wayland) for compatibility with the old proprietary drivers.

If those are your criteria, I would go with AMD right now, because only the proprietary driver will get decent performance out of most nVidia cards. Nouveau is reverse-engineered and can’t tap into a lot of features of newer cards especially, and while I seem to recall there is a new open-source driver in the works, there’s no way it’s mature enough to be an option for anyone but testers.

Unfortunately, modern web browsers are horrible pigs. No matter what distro you put on this thing, interacting with webpages will be s-l-o-w. (I have a similar laptop—2 GB RAM, Athlon64x2 CPU—running Gentoo, and while it’s functional in its primary job of “larger-screen video iPod for 720p or less”, starting a browser takes a while.) The niche your friend wants to make this machine fill is about the worst one possible for it.

On Linux, the OOM reaper should come for the memory cannibal eventually, but it can take quite a while. Certainly it’s unlikely to be quick enough to avoid the desktop going unresponsive for a while. And it may take out a couple of other processes first, since it takes out the process holding the most memory rather than the one that’s trying to allocate, if I recall correctly.

Gentoo specifically switches off the telemetry (-Daudacity_has_sentry_reporting=off,-Daudacity_has_crashreports=off). The cloud saving facility is also off by default, but can be added to the build by enabling the audiocom USE flag.