There's also Flutter, interestingly by Google (not sure what their strategy is here, as their main interest should be to keep the world's information indexable which becomes difficult when people use more native apps as opposed to the web).
Re:Purism – Fund Your App
by searchableguy on Thursday October 08, 2020 @07:29PM
(#24725067)
They are already able to index mobile apps fine though.
That said, native app performance is still unmatched (but not by a long shot!) the react-native project (both by FB and MSFT) looks promising.