"Is anyone still using emacs?"

Yes. I had to briefly visit the world of VSCode during a period of time when it had better AI integration than emacs did, but since I got Claude working well inside of emacs I've returned to 100% emacs. There just isn't anything like the old editors, built in the 80x24 terminal era, for getting huge swathes of code on your screen at once. I run a standard widescreen monitor with three vertical windows for emacs, each of which I often will break into two frames, so I can have up to six contexts active at once. I rarely do, but I frequently have 2 and 3. That's my entire 4K screen, full of code, usefully full of code. I'm not an IDE hater but they do put an awful lot of stuff on the screen that on a proportional basis I'm just not using as much as I use the code editor.

I had been getting somewhat nervous about emacs' long term prospects about 10 years ago. I would read the release notes for major versions and generally not be particularly excited about anything. Somewhere around treesitter something seems to have revitalized the project. It may well have been treesitter that revitalized it overall. You end up with a lot more wood behind fewer arrows when the project is able to put more work into generally-useful tools rather than every single language community maintaining their own separate mode for each language.

Now I am more excited about the major releases; for instance term issues are an issue for me with the aforementioned Claude integration. Not enough to stop me, but annoying. At the risk of saying something inflammatory to emacs fans, I feel like emacs is catching up to everything else better now... but it is catching up. It's getting easier to recommend it again as something you may want to seriously consider as a power-tool editor and not just something I used because I had 15 years of finger-experience with it and no significant reason to change. AI has eaten a lot of the IDE tools for me and you can type into a text box in emacs as well as you can anything else.

I still occasionally bring up VSCode now to use the debugger, I still don't feel like I have as nice an experience with that as I do with emacs, but my debugging habits have always been able to deal with doing something a little extra to do a debugging session. By its very nature, you're committing some time to the process just to do the debugging itself, no matter how slick the UI for it may be, so a bit of overhead isn't so bad.