This is one thing I really don't get. It doesn't even support a USB dongle to do Bluetooth. I've heard it works with some of them, but not all of them.

I use my Switch only plugged into its dock routed through another device that allows me to use Bluetooth headphones. So it's not an issue for me. But I really can't understand how you can sell something as portable if you can't use it with Bluetooth headphones out of the box.

Do you know of Genki Audio[0]? Sure, it's expensive but I trust Genki. I have their covert dock and it works perfectly.

[0]: https://www.genkithings.com/products/genki-audio

sadly nothing was stated so I assume no