Yes, they work on the PS5. But the microphone cannot be muted.

Unfortunately, I don't know. I used the adapter because my docking station doesn't have USB-C. I connected a Jabra Evolve2 65 headset with a Jabra Link 380. I have connected a Jabra Evolve2 65 headset with a Jabra Link 380 and everything works the same as if the Link 380 was in the docking station without the adapter.

approx. 1.5m

I'll try to bring it all together. Here is an overview so that you can see the connections: https://www.logitechg.com/de-ch/products/gaming-audio/g333-gaming-earphones.981-000936.html The adapter has USB-C, but that doesn't help with the PS4. The headset only has a 4-pin jack plug. Normal for headphones would be 3-pin. The PS4 DUALSHOCK 4 controller has a stereo headset (!) connection, not just a stereo headphone. https://www.playstation.com/de-de/ps4/tech-specs/ Stereo headset connector must be 4-pin... if that's what it says.

The best thing to do is to contact our customer service directly at https://helpcenter.digitec.ch/hc/de/requests/new. Your request can then be examined individually.