Does Infineon have development boards that support the Matter Protocol? or MCU?
If not, what communication protocols does Infineon have in the smart home sector?
As far as i can tell Infineon has a wifi and bluetooth portfolio of modules, so basically any MCU that has the minimum FLASH/RAM requirements can support a protocol, lets take for example wolfMQTT, it just need a few 3.6kB, or you could use the one made by FreeRTOS, the same applies for matter, or any other protocol, so basically all you need is the WIFI or Bluetooth module,.
Obviously it depends the protocol, for example for matter as far as i know the device has to be certify but that's another topic.
Hope this helps,