This is incorrect. In fact you cannot adjust the cruise speed via the touch screen at all. Apparently this was actually changed in an early software update to

This is incorrect. In fact you cannot adjust the cruise speed via the touch screen at all. Apparently this was actually changed in an early software update to the TM3, and cruise initially was engaged via the screen though! https://interestingengineering.com/tesla-moves-autopilot-controls-to-steering-wheel-for-model-3-units https://interestingengineering.com/tesla-moves-autopilot-con...