Can you elaborate on that, at least for js? We are a large (1k) fullstack development company and do all of our js / typescript SPAs and others on Intellij and I am not aware of it being an unpleasant experience.
On another point I spent 2 hours setting up a Ruby interpretter because no matter what I did Intellij would not recognise my RVM ruby, I think compiling without yjit and setting up a specific gemset for the project plus a few Restart IDE and Invalidate caches later did it, but not sure.
For tailwind specifically the extension is lacking compared to VSCode, I do not have color squares for my color classes and the classes are not recognized in more difficult filetypes (i.e. erb templates). Many other extensions seem much less loved than on VSCode, i.e. continue.dev, you can read their reviews and quickly get a sense that it's much more niche ecosystem.
I love the editor experience overall and especially for Go projects, but can't switch fully yet.