I think I said this before but the AW3821DW is a business monitor that's good for gaming whereas the AW3423DW(F) is a gaming monitor that's OK for business. The higher resolution and clear text are undoubtedly better for business but the AW38 lacks the contrast for impressive HDR and has 25% more pixels to drive, so for gaming it's not the better choice. I think it's inevitable that MIcrosoft and the like will sort out the text on the AW3423DW(F) and at that point it will be perhaps be the (very first) choice monitor for all roles, but the question is when? Can you wait that long? Also, both of these monitors are very expensive. Arguable for business you are still better off having two screens because it's cheaper.
I have both of the Alienware monitors and I love them both. I've been using UW since it first came out and I would never buy anything less. The extra width is addictive! I use the AW3821DW for work and browsing. I use the AW3423DWF for games. I think you just have to decide where your priority lies.