Visual Studio Code, I think it’s just the best, works on all platforms and there’s extensions for literally everything. If it enshittifies too much with e.g. copilot, etc. there’s always vscodium instead.

If I’m on a linux terminal, I use the micro editor. I can survive using vim if nothing else is available, but yeah, I used to be in emacs team back in the day…

I have used Qt Creator in the past and, while it was pretty good back then, nowadays I’m not sure if it can compete with vscode, I haven’t kept up with its development.