Bottom: the round speaker button becomes a labeled control for the three modes: Mute · Talk only · Interactive. Top: a real search field you can tap and type into, plus Customize (opens the sheet with all settings).
All three modes always visible; tap the one you want. Clearest, most "settings-like".
A pill with a sliding highlight; tap a label or slide. Most modern; top bar is search + a gear icon for Customize.
One wide button that says the current mode in words, with three dots showing where you are; tap to cycle. Smallest change from today.
