Comment 2 for bug 1952719

You appear to have an extension enabled that will impact performance:

  '<email address hidden>'

so please start by uninstalling that and to be sure also run:

  cd ~/.local/share/gnome-shell/
  rm -rf extensions

and then log in again.

If the problem still happens after that then while it is happening please run:

  journalctl -b0 > journal.txt

and attach the resulting text file here.