Have you completely ruled out ultrawides as they would obviously give you huge resolutions / screen without the bezels?
Also, why 4 for gaming, I would have thought 3 mounted horizontal would be better for peripheral vision.
I think if you can stretch the budget a bit more I'd go for one of these:
Samsung CRG90 if you need it sooner rather than later
Samsung Odyssey G9 is the replacement for the above (higher refresh rate) if you can wait for pre-order
If you can stretch the budget even more but want the extra peace of mind of better dead pixel warranty then:
AOC AG493UCX
Similar to the CRG90 but not as good HDR.