Aren’t we talking about video out from the dock ?

Because it wasn’t possible for Switch 1. After some time, some alternative USB-C hubs supported the Switch video output but it was basically reverse engineering and I totally remember this first "compatible" hub back in the early days of the console which happened to brick consoles.

Nintendo is like Apple they :

- Don’t want you tu use the Switch in unpredictable ways : with the switch on the dock the cooling is guaranteed to be efficient, even on Switch 1 because it meant that the console wasn’t lying on a blanket.

- Don’t want you to buy anything else than their expensive dock.

Again you're just excusing the lack of engineering time put into an onscreen message.

'Overheating detected, reducing video resolution'.

Nintendo will earn millions by keeping it proprietary. Lets stop pretending this is about technical ability or 'protecting' the consumer from a bad ux.

Apple devices work near flawlessly with third-party periphery in my experience, what are you talking about? They have some questionable limitations at times (like iPads supporting Thunderbolt but not being able to safely eject USB drives), but I don't buy Apple cables & adapters and that's because they're not needed. I can charge a Macbook with a random USB-C charger on my desk, I can turn on my third-party BT headphones and they're connected within two seconds, I can connect a screen with a third-party USB-C adapter and the only possible issue is that not all USB ports go up to 240Hz. I cannot say some of these things about my PC on which Bluetooth audio simply is not usable at all and some other basics need janky workarounds or ironically only work on Linux.

I have many reasons to be pissed at Apple but connectivity is not one of them.