Gonna try this out. Hmm. Seem OK. No floating, no one handed mode, no pinyin input though. Good start.

From xda, seems is possible

They recently got whatapp and Google assistant for the non Samsung ones(I'm on a Fossil)

Fitness tracking varies from brand to brand, it'll never cover every feature that you want.

Me? I'm happy to get notifications, messaging and Spotify. Google assistant is fun, but not a deal breaker.

This. Then mute on the home feed.