There is all that crap, and then there is https://sphinx.chat/

Yes, currently it's the best option. The need for mobile number is really annoying though and breaks privacy if you want to join groups with many people. 

nout

asdf

Then probably Threema but it's hard to get people to use it as it isn't free
(Can be paid with Bitcoin)

Neither is great for privacy... Matrix is leaking all metadata, server has full view and a lot of groups are public anyway.

Nostr (anigma.io for example)
Matrix (Elements app for example)