VideoLAN @videolan App Stores were a mistake. Currently, we cannot update VLC on Windows Store, and we cannot update VLC on Android Play Store, without reducing security or dropping a lot of users… For now, iOS App Store still allows us to ship for iOS9, but until when?
Traditionally Fdroid signs every app. Not with the developers key. The future are reproducible builds. https://f-droid.org/2023/01/15/towards-a-reproducible-fdroid.html this is a futuristic app store, not what google has.