No I think you will need to reinstall. But as you can export your settings this is not a very big deal.

https://github.com/thunderbird/thunderbird-android/releases/latest

Interesting, they renamed their org from thundernest to thunderbird. Makes more sense tbh.

I changes the URL to this in Obtainium and removed the old one. It seems they are still not changing the App ID as updates worked normally, but that version should get the redesign soon.