Bit off topic but in case anybody is wondering, the Hisense 437500F (EU model) does support 4k @ 30Hz @ 4:4:4 but NOT 4k @ 60Hz @ 4:4:4. Also 4:4:4 needs to be reenabled each time after the hdmi connection has been interrupted. As far as A7GQ (EU) goes, it seems the Q is there for it being QLED. So there is a chance the A6GQ is not like the A6G either.
I think the bass is REALLY great and this is definitely not mixed use. I would rate this a 9 for office, neutral sound and commute/travel. The sound quality is REALLY great, it is very crisp, unless you change it yourself using apps like Nahimic. They have some of the best sound quality for headphones and I never get any sort distortion. Overall, I would rate this like a 9.5 out of 10. These are REALLY great headphones, even though they are from 2018.