The cursor is set sometimes automatically to the top of the document and bugs with accents

Linking your reply in this thread since the context is above:

For the cursor bug, here are some options from most to least advisable:

  • Set the Synchronisation interval to a longer duration to lower bug frequency.
  • Disable Synchronisation interval then manually sync while not editing a note.
  • Disable Synchronisation target until you are ready to enable it again.

Note: I don't do any of the above. I can't advise the last two options unless this bug is a deal breaker for you.

I can reproduce your other bug if heading and link are in the same note. The link doesn't work whether accents are used or not. Does this known bug match what you're seeing? Anchor Within Same Page Doesn't Work · Issue #8670 · laurent22/joplin · GitHub

If not, what plugins are you using? Have you tried reproducing the bug without plugins enabled or installed?