Upgraded this weekend. The only thing that’s different is that the “cursor/insertion point width hack” I used on Sonoma doesn’t seem to work on Sequoia, so that’s back, which is irritating. I am learning to live with it by making my insertion point a very pale grey (thanks Scrivener) vs the default light blue, which is just annoying on a white background next to black text.
So far, that’s it though, no other issues.
EDIT: Oh and I should say, especially as an ancient iPhone user, there’s very little reason I can see to upgrade to Sequoia right now. Some minor improvements to Finder window handling, new Passwords app. The ‘big’ feature is the ability to basically mirror your iPhone, but it only works with iOS 18, I believe.