I dont care about the resolution as long game runs at 1440p 60fps, so dynamic 4K sounds almost perfect.
2080ti dips below 60fps in the most demanding games, but it still can run 99% of games at locked 4K 60fps if you only adjust settings from maxed out to high.
5070XT can run some amazing looking games at 4K 60fps even maxed out (for example forza horizon 4, doom eternal, battlefield 5), and PS5 GPU is 5700XT on steroids (VRS should improve fps by around 20% ay minimum, and probably more because 3dmark benchmark on PC shows 70% performance boost thanks to VRS tier 2 and RDNA2 should support it as well).