Dunno, I don't own Apple products and was quite disillusioned with my one workplace MBP. I'm unfamiliar with their newest chips and feature support. Do they maybe have an off-chip USB controller on the tablet?
Honestly, I'd expect any Armv8.3+ or Armv9 to have USB PD/USB-C, Thunderbolt, etc. on the chip itself. USB PD is even halfway-or-more supported on some budget Cortex-M targets. Apple, though, is a special case; the chipmaker and developer are the same, so they have the freedom to say "no USB-C on mobile chips" and include only the features they want.
My post was pure speculation and a little giving them the benefit of the doubt.
Honestly, I'd expect any Armv8.3+ or Armv9 to have USB PD/USB-C, Thunderbolt, etc. on the chip itself. USB PD is even halfway-or-more supported on some budget Cortex-M targets. Apple, though, is a special case; the chipmaker and developer are the same, so they have the freedom to say "no USB-C on mobile chips" and include only the features they want.
My post was pure speculation and a little giving them the benefit of the doubt.