> I don't see F-Droid itself mentioned
F-Droid itself is great, but I find that the NeoStore front end to F-Droid is superior because it has multi-repository capability, offering a long list of alternative apk sources that can readily be verified for quality.
Additionally, the official F-Droid app creates unnecessary friction for GrapheneOS users they refuse to address: https://gitlab.com/fdroid/fdroidclient/-/issues/2914