I can personally guarantee you how nice ultrawide is and beats 2 small monitors every day. I have had one for 6 years and can’t go back. Windows makes it easy to snap left and right.
I use a program called PowerToys FancyZones to divide my ultrawide monitor into 3 equal sections that I can snap to as well. I suggest checking that one out no matter what you end up going with
Looks good. I’d go for 32 gigs of ram though if you can swing it. Also is there any reason why you want a 22" monitor specifically?
The reason this one should last is because ddr5 is new and so is the AM5 socket for AMD. AMD supported the previous socket from 2016-2022 so many are speculating that you should be able to do CPU upgrades for the foreseeable future without having to change the whole platform.