VSCode + ElixirLS: no intellisense in Phoenix eex / heex

Latest VSCode + ElixirLS in Linux.

I am not getting intellisense in Phoenix 1.6.2 heex templates (no assigns, functions defined in views, helpers (link, Routes etc.)). Emmet is working.

Has anyone this working in VSCode? How about in another IDE with elixir-lsp?

I tried this, but it didn’t help:

there exists also a phoenix plugin, which handles the new heex format

I should have mentioned that I have also this plugin installed. Sorry. Thank you for trying to help, though.