Everyone actively engaging with Julia has opinions regarding this.
Instead of biasing towards those eager to write posts on this thread, it would be better to have a quick poll to gauge the Discourse audience. Ideally, the poll should have less than five questions.
Personally, hitching the wagon to VSCode too much doesn’t seem ideal. Julia should learn from the rise of LSP: the important issue is to make a clean API and a decent implementation of this API’s server which can then be adapted to any IDE. There are several facets to this API (and it is essentially a superset of the LSP API).