Depending on the language you're writing VS code plugins are a bit hit and miss. I've tried using it for Rust dev for example, and everything kind of worked, but with way too much jank. I constantly had problems with autocomplete suggestions being duplicated and linting being slow or not updating errors. Enough to make me wish I had a dedicated IDE.

More widely used langs have better experiences though I'm pretty sure. And maybe Rust support has gotten better? Seems that other commenters in this thread had positive experiences.