The way I deal with this is 1. try to make commits small enough so you are less likely to split them after the fact. 2. when I need to split a commit, I use VSC

The way I deal with this is 1. try to make commits small enough so you are less likely to split them after the fact. 2. when I need to split a commit, I use VSCode UI and apply patch by patch. This is one of the rare case were I use a GUI for git. For most other things the command line is fine.