Emacs does it. I don't remember which package I'm using and my laptop is out of reach now, but it leverages LSP. However my point is that I never used that functionality in the last months. I discovered today that M-. doesn't work anymore. It's the key combination to jump to the definition of something. Of course I used to hit it all the times. Maybe I broke it weeks ago with some configuration change. To give you some context, I'm a web developer, frontend and backend, currently Ruby, Python, Vue. I've been doing this job for more than 30 years.