Allow me one noobie question. Do you (closed back lovers) feel significant difference in thermal comfort on your ears, compared to open back headphones? I use BT closed back now for video conferencing, which usually is not longer than one hour, so my ears have time to rest. But for music listening I have Ananda, which is very transparent (not only in terms of sound, but also in terms of air flowing through). I'm currently contemplating about acquiring some warm, dark headphones to complement Anandas, and they are typically in closed back form (T5, Denons etc.).
In my admittedly limited experience, it depends on the relative size of your ears to the cups. I find the BT Sonys that I use for video conferencing hot because the cups are small, but the audiophile headphones I’ve tried all have pretty generous cups so it’s less of an issue. I wouldn’t want to exercise in them though.