Hi @Leigh625
Most Hosts purchase a WiFi Thermostat that can be controlled remotely via an App on your phone. The Emerson Sensi ST55 is a good one around $115. Others use Nest or Honeywell. You can set a temperature range that guests cannot exceed, like min temp 70F and max temp 72F for heating (or whatever range you want). Some can also sense motion and when none detected after a certain period of time will turn off the AC.
I have been hearing horror stories about guests who stay at an Airbnb explicityly to do "crypto mining" (bitcoin) which uses alot of electricity to run the various computers 24/7 to do it. Some hosts have added a "No crypto mining" to their House Rules and add that electricity over whatever is usual & customary will be charged to the guest.