After my iPhone SE3 updated to IOS 27.0.1, I have had an issue when doing talk to text. I start talking, no problem, but if I don't keep the phone level in my hand and the top of the phone drops any lower than the bottom, it immediately rotates the screen and cuts off the microphone. I don't want to do a blanket portrait lock, as I often rotate my phone for other functions.
Thanks for listening!