If you're comfortable with vim, vimdiff is lightweight, works well for simple stuff, and you probably have it installed already (can use vim -d if not)
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I absolutely could not wrap my head around even gvim, but thanks for the idea; I know it's well regarded, but my skull is too thick. The Nemo Compare plugin apparently works flawlessly!
Meld
That's right, I forgot about this one. I read about it, but hadn't gotten around to trying it for some reason and then forgot. I'll take a look.
Edit: Thanks again; I found out that Nemo has a Compare plugin sporting Meld right in Mint's Software Manager!! This is the best one I've seen!
Vimdiff (vim) can do that
Meld is pretty good standalone, but I don't use it often due to:
I work in the dot net ecosystem, and VSCode is a tool I have to use. It's relatively lightweight, and the comparison/editing things when in a git repo is just what I want.
Can Magit not do this in Emacs?
https://www.masteringemacs.org/article/introduction-magit-emacs-mode-git
Bottles run in flatpak need permission to full file system basically that it, try something like port
https://github.com/dail8859/NotepadNext
I don't know why it still not popular