For those of you that only have a 1080p 16:9 monitor, you can create a custom resolution to get the benefits of ultrawide. 1920x822 is what I use. Its a bit lighter
OC] Resolutions of ultrawide monitors, and their 16:9 counterparts, as well as 4k. : r/ultrawidemasterrace
Yes, You Can Use PS5 with an Ultrawide Monitor | BenQ Canada
Is 1080p resolution enough for a 34inch Ultrawide monitor? | Remote Setups