As a counterpoint, I’ve had Ubuntu’s installer and grub’s updater overwrite and break Windows’ boot files several times, but never had the opposite happen (I’ve had both destroy themselves, though). Thankfully, I know how to rebuild the necessary parts of a Windows install, so it’s never been a catastrophe, but it’s irritating to see what’s always been the source of the problems I’ve had be held up as infallible. Possibly this is a problem unique to Ubuntu - I’m happy to blame Canonical - so maybe it could be entirely sidestepped with other distros.
It’s not realistic to demand to own games in the same way as a spoon any time soon. It is, however, pretty reasonable to demand you own games like you’d own a book. You can chop up a book and use it to make a paper maché dog, but you can’t chop up the words within to make a new derivative book (or just copy them as its to get another copy of the same book except for a single backup that you’re not allowed to transfer to someone else unless you also give them the original). The important things you can do with a book but not a game under the current system, even with Gog, are things like selling it on or giving it away when you’re done with it and lending it out like a library.
About a hundred years ago, book publishers tried using licence agreements in books to restrict them in similar ways to how games and other software are restricted today, but courts decided that was completely unreasonable, and put a stop to it. In the US, that’s called the First Sale Doctrine, but it has other names elsewhere or didn’t even need naming. All the arguments that applied to books apply equally well to software, so consumers should demand the same rights.