I'm honestly considering buying an actual 4k monitor. But they run pretty expensive.I picked up a widescreen 144hz for 500 in the UK, its fukkin glorious breh I have RTX 3070. shyt is smooth as hell. Tbh I was almost panic/impulse buying as it was so much information out there and it was pretty daunting. As much as I'm happy with what I have there may be better deals out there for someone who knows what they are doing, and this was a year ago almost.
Definitely recommend a widescreen but depends on what games.. Lots are compatible but not all, I believe
But I don't even feel on using my graphics card at the moment.