Yeah, nah.
Obtainium's currently supported App sources:
Open Source - General:
GitHub
GitLab
Codeberg
F-Droid
Third Party F-Droid Repos
IzzyOnDroid
SourceForge
SourceHut
Other - General:
APKPure
Aptoide
Uptodown
APKMirror (Track-Only)
Huawei AppGallery
Jenkins Jobs
Open Source - App-Specific:
Mullvad
Signal
VLC
Other - App-Specific:
Telegram App
Neutron Code
"HTML" (Fallback): Any other URL that returns an HTML page with links to APK files
There's more sketchiness there than on F-Droid, and a lot less automated testing.
Not doubting the reality of censorship on F-Droid, but they have a domain name and an address they don't want smashed in by Feds at 6am on a Friday.
App stores are custodial, and so are nearly all repositories. Git over Nostr would be a better start...