I have the same problem, on Ubuntu 20.04.6 LTS as well.
Additionally I am experiencing the following problems:
- ctrl+click functionality on any function/component does not work at all.
- searching for strings/function names in my repo does not work well - it only returns results from files I have currently open.
- Saving a file takes a good 2-3 seconds as well.
- no suggestions/autocomplete pop up anymore
All of these happened after latest update.