Does anyone else keep getting notified of updated games in the library that turn out to be the exact same build as the one you already downloaded?

They are mostly updates for OS X builds, you can check what was changed wieving the changelog Under My Games -> Game -> More -> Changelog

Edit: Like this, pic related in attachment.
Should get a way to turn off notifications for builds of other OS-es.

Did you check the changelog (gamecard -> more -> changelog)? Maybe the notification is about another OS (There were a lot of Mac updates lately) and you only looked at the Windows versions.

Honestly, same build or not, I really don't feel like being updated about every little change in my library, the bulk of which I'm not involved with at the time anyway so I really don't care until I decide to play that game.

Even more so considering it could just as easily be a notification of someone talking to you since they are the same.

On top of that, they don't freaking go away right after watching whatever the update was, sometimes lingering for days.

You know I think that is right. WIndows 10 updates. Appreciate the clarification.