I use a similar setup for the same reason. 32“ 4K Dell and a MBP. When I was still using a dual screen setup I had one in the center as primary and one at the

I use a similar setup for the same reason. 32“ 4K Dell and a MBP. When I was still using a dual screen setup I had one in the center as primary and one at the side in portrait mode. Having dual screens next to each other with the space between the screens in front of you sounds like an ergonomic disaster. Some people seem not to mind though.