+1 for Manjaro

You probably need to re-install it selecting the Izzy repo. The app in the offical repo is signed differently from the one on Izzys and the F-Droid app will stay on the repo your app is installed from.

Izzy repo usually updates daily while official one is always a few days behind.

If by “this” you mean the jerboa app, it is on F-Droid. Both in the official repo and on Izzy’s.