I know, but the fewer sources you trust the better. This is just a suggestion. I think you'll get more downloads if you're on fdroid. And even more if you're on Google Play store. It's up to you.

All the open source projects are on both stores. Just saying.

Absolutely, I agree with you. However F-Droid is a tricky one. They build AND host packages themselves, and they had security issues. Way too much trust placed in them. The only way that makes sense to use F-Droid is with reproduceable builds.