This is a great point. Personally, the only reason I would want to switch to Emacs is Org mode but the muscle memory for custom Vim and Tmux keymaps is hard to give up.
I had the same fear before switching to emacs(in evil mode), so I changed some of the default shortcuts that I was accustomed in vim(e.g. nerdtree/treemacs). It's not that hard.
The whole enormous productivity boost that you get from Org mode(and org babel/literate programming) is well worth the temporary minor inconveniences of learning the tool.
magit is the best git porcelain (interface) that I’ve ever seen. I’m a longtime emacs user, but even if I wasn’t, I’d provably use magit as my git interface
