As the LS compiles on save, they are there “as you type”.
I do see red and yellow squiggly lines. My office box has no emacs installed though and I can’t SSH to home for some reasons that I have to debug later, so I can not show you a screenshot right now, perhaps later today (6 to 10 hours from now).
I do use eglot, for LS, perhaps that is making the difference?
Anyway, you can look my emacs config up at Norbert Melzer / emacs.d · GitLab, perhaps you spot the difference?
