Its super to see alternative options to be always available.
This is the link for Kryptey GitHub - amnesica/KryptEY: Android keyboard for secure E2EE communication through the signal protocol in any messenger. Communicate securely and independent, regardless of the legal situation or whether messengers use E2EE
There is also DeltaChat ( Delta Chat, decentralized secure messenger - Delta Chat ) made by Ukrainian activists which routes encrypted messages through email (so email seems simple to understand and use).
This is their story: FOSDEM 2025 - Delta Chat, from e-mail messaging to Peer-to-Peer realtime networking
And their mastodon Delta Chat (@delta@chaos.social) - chaos.social
Maybe we would become like these Ukrainian activists (in the FOSDEM talk above) communicating privately still outside of (increasingly (wannabe) authoritarian) government control.