At any time I'm working across 5-30 branches (some when I'm reviewing other folks' code) so it's handy to see my latest branches

At my current job it's fairly frequent that I have 5+ active branches open for a repo. Not ideal and that's another topic, but it is nice to be able to sort branches because of that.

I've seen monorepos with over 10k active branches. But even at a smaller scale (10-100 branches), it becomes useful when manually stacking and/or rebasing, especially if you have a smaller terminal.