I'm using the BMW Connected App on a Pixel 6 with my R18TC. I have not been able to hear spoken navigation instructions (either on the bike speakers or my helmet communications system (Sena SRL)) since purchasing the bike. I received the following from BMW Support after submitting the issue...
Just purchased a 2022 R18 TC last weekend. Coming from a 1250 RT. I find the riding position more comfortable and I can finally flat-foot a BMW when stopped. I have to get used to the heaviness at slow speeds, when stopped and (particularly) on gravel. Otherwise, I'm enjoying riding the R18...