Jami Beta on Fdroid (or just outside Google Play)
I heard, that Beta with Swarm feature is available on Google Play: https://git.jami.net/savoirfairelinux/ring-client-android/-/issues/501#note_30472
Users (without Google Play access) could help testing it if it was available via Fdroid (or any other channel, is it?).
Regular Jami is released on Fdroid, see https://f-droid.org/en/packages/cx.ring/