Yes, I do not want wifi or bluetooth for several reasons.
So, no usb hub that I could try.
Thank you for this valuable information - then I do not have to try to find something that doesn’t exist at all.
I will close this thread now…
There are mobile bluetooth routers that cen be connected to wired headphones.
I am now deeply disturbed about the fact, that Fairphone has removed an audio jack connector knowingly, that then people have to use some wireless devices.
well well.
Case closed