

I think people might be saying their system broke when a specific, non critical, application doesn’t work after an update based on an interaction here.
That does become more common if you start installing third party software and/or use less common/recommended tools. Personally I wouldn’t consider that breaking, but I guess to a casual person it might not be clear that rolling upgrade systems have this risk and the weirder your system gets the more familiar you should be with backups and rollbacks.
Yeah, I would say broken if it wont boot to a normal userspace. Like if you need to insert a recovery tool, or even just login as root and unfuck something before you can get your X/Wayland session up, or if applications start crashing because toolFoo has some critical bug.
But the last time that happened was on Debian when I tried to write a fstab file manually without reading the manual. Also this was the era of CD drives and no multi PC households. Learned a valuable lesson on the ride back from the library, printed documentation in hand haha.