Aside from bug/issue spam where maintainers are stuck dealing with bogus problems raised by LLMs and posted by lazy humans, I don’t think there ought to be an issue. Maintainer burnout is no joke though; a bad day topped off with a bogus bug report might be the straw breaking a camel’s back.
The other issue is licensed code with stricter copy left protections can be stolen for training data and unwittingly regurgitated into a code base elsewhere. Unfortunately this would require lawyers to actually bring these cases to court, which is not happening at the moment. Seems more manageable as an issue though since there is a path to resolving it. I think I need to make an EFF donation to help with that process.
I use gentoo on my main PC and debian on an old Thinkpad.
Debian is solid as a rock provided you don’t edit the sources to make it a “FrankenDebian” where it is pulling in more recent packages like Ubuntu.