Designed1668 Does it make sense to use Obtainium and pull from these F-Droid repos for this or just use F-Droid Basic? (Unless I should use another F-Droid client)? What's the difference in terms of privacy/security?
If the app is only available on F-Droid / third party F-Droid repo, use F-Droid Basic and use the third party repo rather than the main repo if available.
If the app is available on Github then install the APK first from Github then auto-update it using Obtanium. Be sure to check the hash using AppVerifier which can be installed from Accrescent (available on the GrapheneOS app store).