It seems I'm not up-to-date. What's wrong with LastPass?
Edit: nevermind. I just googled it.
[https://www.notebookcheck.com/Ist-LastPass-noch-sicher-Experten-kritisieren-den-Passwortmanager.677484.0.html)(url)
Here is an article about it (in German), for anyone else wondering.
Seems like I will have to find a way to move my vault to another password manager. I hope I can find a way of doing this safely without needing to do that manually... So I am grateful for any advice!