Here’s one post stating the Advanced driver works best:
https://community.hubitat.com/t/honeywell-t6-pro-z-wave-thermostat/100968/10?u=jkudave
I’m pretty sure I read/saw it mentioned elsewhere too. I just can’t find where at the moment. The T6 Pro, if I recall correctly, pairs with the Generic Z-wave Thermostat driver. Most, including myself, find that works for them without issue. Many also prefer the Advanced driver that can be found on HPM. I don’t recall anyone mentioning they use the built-in T6 driver.
