You're still "fitting in" to a workflow with Vim, and one that's arguably suboptimal if your setup would benefit from the kind of computer aid to software development that an IDE would provide out of the box. IDE's are not perfect by any means, but they're better than something that got started as a trivial 'visual' mode for ed (a line-based editor) to make it more useful on glass teletypes.
With coc.vim/Native-LSP I hardly feel the need for an "IDE" experience. I had troubles (and almost switched back) with autocompletion and syntax detection before LSP but now I think it's at par with most IDEs.
Congrats on autocompletion and syntax! Now do visual debugging, safe refactoring, type and parameter name hints shown inline, and package management. The first 3 are used on daily basis, the last one maybe once a week.
