I use zwift via Apple Tv4k and my ipad pro and on every ride i get drop outs on the cadence for a few seconds before it cuts back in again.
My set up has the Kickr trainer and tickr HR strap connected to the Aplle Tv via the bluetooth, but due to the bluetooth limits apple imposes the Companion app has to deal with cadence.
It doesn’t matter if I use the wahoo cadence sensor (on my shoe) or if I let my 4iiii power meter on the crank send the cadence data, both still get the random drop outs. The ipad is only a could of ft away from the crank as I use that as a controller for zwift rather than the apple remote.
P.S it was the same under the older mobile link app.