It's been a while since I've tolerated the git gui interface, but when I used to use it, the line-to-chunk logic would regularly fail on short 2-3 line spans.

There's a stackoverflow discussion [1] that suggests it was fixed in 2018, but for many years it was a terrible experience that pushed me to use other frontends just for reliable partial staging.

1: https://stackoverflow.com/questions/58133092/git-gui-error-f...

It does, but github desktop is way better looking and has deeper integration into github prs, status checks, etc.