I've mounted both an Oklahoma PikePass transponder as well as an EZ Pass transponder (Massachusetts) to the right of the head unit/rear view mirror and both have worked well (just checked my EZ Pass MA account after driving from Oklahoma to Boston and up through Maine/Quebec and back to OKC) and tolls are all recorded.

I have the latest version of heated/solar attenuating windshield in a '21 HSE. I have the larger window transponders (suction cups for OK and velcro for MA).