Well...
It's great I guess. I mean, I have said for a long while now that I will remain entrenched at 3440x1440 until the next 21:9-ish res comes along, and that was pretty much 5120x2160. Here we are. But it will need be more commonplace and eventually, I guess, hit closer to the more reasonable 3440x1440 OLED pricings. Maybe 5-10 years then but we're on the way, yay!
Of course, the other, bigger, question rn and in the forseeable future is 'can I run it'... or more accurately, 'do I have the other necessary HW goodies to run my library on it to a similar standard as I do at 3440x1440?' Not even close, even with DLSFSR or whatever, and not for a while yet, again... in a few years maybe double or more the budget of my last build allowing, and it'll take at least that.
Might just be I end up sticking with 3440x1440, adding OLED or whatever belatedly, and maybe upsizing from 34". Fair enough, or at least a reasonable progression (and pricing) from the 7900XTX should keep up there anyway.