What PWS does everyone use?

Not as far as I am aware.. the station provides its information via UDP broadcast and I am not sure if Hubitat can handle that (?).

There is a possibility that WeatherFlow will support MQTT directly soon - or offer MQTT Broker access via cloud. Either would be useful for direct integration with Hubitat.

There are two other threads

I have an EU system, and I am really pleased with it but my integration is via another HA controller which then re-exposes everything over MQTT so I can get at it in HE if needed.

K