There’s a few others, such as GitHub pull requests, play store/fdroid updates, bank payment notifications, snapchat (for those that use that, reemember to turn of useless non-notifications). But for the most part, I agree. Turn em off
For me that doesn’t quite work out, because a lot of stuff wants to install itself on the main drive, and refuses to be installed on any other drives. Visual Studio is the best example I can think of. I don’t have the room for multiple installations of it, so I only have the 2022 version installed