You may want to check out this thread from GrapheneOS: https://grapheneos.social/@GrapheneOS/114235396540176085 They are technically competing, but their points about lack of support and slow update speeds are still valid.

I think that is one of the reasons, but the main one is probably interference from controllers.

When they added Bluetooth audio to the original switch, they had a limit on the number of controllers you could have connected at the same time (I think it was like two?). So it’s probably the same for switch 2, they just don’t want to deal with it