I went to a specialist physiotherapist. One of the top in my state. She was adamant that if you're using a multi monitor setup, that the main monitor be DIRECTLY in front of you, with the secondary one off to the side. This was to stop you always looking at a partial angle.
Better to spend most of your time looking directly straight, and looking over to one side regularly, than to always be looking on an angle.
That monitor is like it was designed to destroy your body.
Just be careful. It catches up width you. (Boom tish)
I actually find that having the ultrawide has been better for my neck as I use the centre of it as a 16:9 coding area with two 8:9 sides for docs, browser etc. I move my neck less and only my eyes. It’s awesome!