2 channel vs headphones

I mainly use headphones when others are sleeping in the the house or when traveling.

Not if I can help it.

Yes, separates speaker system (see virtual system), open cans with dedicate HP amp (Dan Clark Ether 2 with Woo WA6SE with upgraded tubes), and IEMs with dongle DAC for on the road (Westone Mach80 with Dragonfly cobalt). 

I mainly use headphones when I'm moving around, either in the house or outside.  I miss the depth effects that 2-speaker systems provide, even though my headphones/earbuds can hint at those effects.

I also use earbuds when I'm recording, mixing and mastering my own original music.  I do a check with my main speakers before final mastering, mostly to make sure the instruments are panned the way I want them--speakers give a different perspective on that than headphones.

Its a very different listening experience. I still own my RAAL SR1a headphones and also own some electrostatic headphones but rarely use them anymore. I prefer listening to my 2 channel home system. I use my headphones when I'm sitting at my desk and discovering new music I want to add to Tidal.