tpax For apps which have the same functionality on F-Droid and Play Store, I prefer Play Store (or Aurora Store). Some apps have a slightly different feature set on F-Droid, because there are features which are not allowed on Play Store. In that case I use Neo Store with the developer's repository or in case that's not available from the izzyondroid repo. In the latter case, I double check if the APK is truly from the developer's GitHub.