nothing more robust ATM, additionally it has all the privacy settings that any social app should have, haven't test so far something better, Primal is a no no in terms of opsec, quite centralozaed too, others which are decent like 0xChat complicated the UI too much, created their own experience and it is not easy to understand nor addictive, they should have just keep it simple and copy Telegram UI, even TOR requires tech knowledge and an additional app set correctly, Amethyst has it built in and is a simple selection in preferences if you want it or not