Sublime mostly, not a fully-featured IDE I'd say. For front-end I'm using VS Code, that's only here and there, and that's where the struggle comes from.

Last time I've tried Idea/etc was quite a few years ago. It didn't feel great. But maybe I should force myself into it. Might be better on M1.

I also open regular Visual Studio every few months for C# on Windows, and while it's slow to start, the editor feels really solid, quick, and responsive.