When the text is large, the message box folds stickers, then GIFs, then emoji into + so there is always room to write, in channels, threads, direct messages, forum replies and a room’s chat, and a tablet at a large text size gets the phone’s layout.
Voice & video can switch a phone or tablet to hold to talk: hold the microphone on the call screen, a room, a stage or the call’s strip to speak. Voice activity stays the default.
A call’s People keep each name whole, every sheet row has its icon and keeps its words, settings pages fit a 320-wide phone at a large text size, and Data saving also holds back the pictures on an app’s card.