i mean if you think the screen is too large then just move further back.
i use a 34" ultrawide, which is the same as a 27" 16:9 just wider. used 27" 16:9 before. it is nice to have the chat and dps meter and stuff far away i think, so much room for activities. i don’t have frames on the corners, they’d be way too far to look at.
but also it’s just about being nicer for immersion and more room on the desktop, not about performance. resolution makes things look nicer as well.