I get irritated by Zoom saying I need to update right when I open the app and want to join a call. Or even worse, sometimes I'll have had the app open (checking video and sound) and it won't notify about a required update until I actually go to join a call.
Never understood why they don't propose the update when the call has ended.
Bitwarden also does this, with a big modal popup - and I only use my password manager in the middle of a flow. I'm either in the middle of signing up for some thing to accomplish a goal (like checking out on a website), or logging in to something to do the same.
I'd much rather it prompt on app close (when I don't care how long the update will take), or just have a button in the UI that I can click at my leisure.