Thanks everyone for your answers!
The plan is to have MM placed on a wooden wall. The apartment was refurbished and there is electricity prepared in the wall, so there won’t be any cables hanging. The aim is to reduce the depth of the frame as much as possible so the ‘passage’ from room to room is affected minimally.
(sorry for the link, the picture upload in this forum just does not work :()
Mulling over on the question, the mirror is going to be quite big - would that mean the ‘glass’ of the mirror itself would need to be more deeper?
@uros76 Can you please explain how difficult is “move monitors mainboard on the side and use angled hdmi cable.” for someone who has almost 0 experience with electronics?
@BKeyport Would you mind to share a link with description how you achieved that?