Another report from an iPhone. I can't paste a copied command into a chat's terminal. The toolbar in that terminal shows arrow keys, esc, CMD and a keyboard button, and I can't see a paste button. The toolbar list in this issue has ctrl and alt where my toolbar shows CMD, so the layout may have changed. I haven't checked whether the toolbar scrolls further, and I haven't recorded the iOS or app version.
This also looks related to #25618.