Additionally, my 2019 Model 3's infotainment is noticeably slower than a 2023's. I'd hate to be limited by compute in a car that I'll probably replace in 8 years. If it's my phone, the replacement time is much shorter (and much more affordable!).
It would not stop me from buying another Tesla. The infotainment is generally fantastic (as is the rest of the car). But CarPlay would make the music and podcast experience so much better.