Like many I have tried several of the Lemmy android apps. I looked at Thunder and, while I liked the overall look, it wasn’t finished enough to be default for me. Well things have changed. The addition of community icons and a gorgeous profile section got me. I only see it getting better. Thanks dev(s)! Thunder is lightning.
It’s available via f-droid.
At least in the IzzyOnDroid Repo, not in the official F-Droid repo :)
https://apt.izzysoft.de/fdroid/index/apk/com.hjiangsu.thunder