If you’re on vscode it is probably not the moment to switch to rust analyzer. It doesn’t work that well compared to rls. It gets tripped up easily and stops working if your code has bugs. It also doesn’t format on save.
I can't speak to your experiences obviously, but based on mine I would recommend that anyone on VSCode gives it a shot immediately.
Also compared to RLS it works much better on code with errors in, at least in my experience.
You both should file bugs!