I'm looking to add Thread/Matter to my existing setup (Pi4 running HA, Sonoff Zigbee controller/Zigbee2MQTT, Zooz Z-wave controller) in order to try out Ikea's new Matter switches. I have been doing a little bit of reading on Thread and Matter but I'm not sure which controller/hub would be best with my current setup.

It appears that a lot of these hubs include Zigbee and wifi radios, so would that interfere with my current Zigbee controller/network and/or wifi network (Pi is right next to my Wifi router)?

Secondly, is there a feature difference between different controllers? I saw the Aqara M100 as an inexpensive option, but I want to be sure it fully supports the feature of the BILRESA switches as I'd like to use the scroll wheels to control the brightness of my lights. Other options I saw were the Google Nest and Apple 4KTV, but I'd rather not use a Google product and don't have any Apple products in the house. I don't have a hard budget, but would of course prefer not to spend money that isn't necessary