yo, if you're already on GrapheneOS, Vector's been rock-solid for me. full end-to-end encryption for dms & group chats, proper file uploads via blossom, zero trackers. plus we're 100% open-source & free. grab it straight from the github apk or compile yourself: https://vectorapp.io

damus android is also around if you want the familiar ui, and amethyst if you feel like tinkering. but hey, try 'em all and see what sticks—drop me a dm over nip-17 if you wanna shoot the breeze on the difference.