So, I have been using emacs on and off for 32 years at this point, and I my emacs all set up with eglot and rustic and magit and the like and it's great.. but I still find I just fall back to RustRover when doing development because (unlike some the classic TUI IDEs mentioned in TFA) it just never feels like it's fully glued together and it's always a bit fragile and I never remember how to do certain things -- even though I'm the one who set it up.

That and lack of a decent visual debugger situation.

So I have this weird thing where I use emacs for interactive git rebasing, writing commit messages, editing text files and munging text... and then RustRover for everything else.

It's sorta like the saying, "I wish I was the person my dogs think I am"... "I wish emacs was actually the thing that I think it is" ?

There is a good IDE-style debugger available for Emacs these days: https://github.com/svaante/dape

Since it has no dependencies, I wouldn't be surprised if it gets merged into Emacs core at some point.