As the title says, I am torn between these.
I know the 34GK950G-B is "overpriced" and not even out yet, and I will wait to see how much it actually is going to cost before buying it.
I have a rtx 2080 ti to power these panels, and I am pretty much at this point deciding between true 4k ultrawide 60hz or 1440p 120hz ultrawide.
I would go to the store and test a 27 inch 4k monitor and a 34 inch 1440p 120hz ultrawide monitor, but that is not really a option in this country :/.
I mostly game and watch videos, and I never truly cared about fps and mostly cared about graphics. I have heard however that the downgrade from 4k to 1440p is just straight up worth the increase in HZ, because it makes the game look so smooth it beats the downgrade in pixels. I don't know if this is true, however.