I find my Dan Clark Aeon2 Noire very comfortable and suitable for extended listening sessions.
I don’t work with headphones on, as I prefer proper listening to background listening, plus most of the day is spent on calls & have a conference phone on my desk in my home office, no headset required.
The DCA A2N are powered by a Bakoon HPA-21 battery power current amplifying amplifier, which is well reported to work well with Planar Magnetics.