Your update caused me to check mine. It’s currently working! 🥳 I haven’t installed the new beta yet, but now I’m scared to lolWeird update: still running the same beta (tho there is now a new one ready to install) and dictation is back, but in an older/different appearance. So something must have changed on the server side. See attached -- the mic button launches a huge area with no "stop" button. Dictation does work, and I can tap anywhere in the sound wave area to stop it listening. I'll report back once I've installed the new beta.
Hopefully it continues to work after the update. 🤞🏼