When I ran @ 1080p I used TAA and upscaled to 2k resolution. This makes the text a lot more readable on 1080p display. That said, if you’re worried about performance @ 2k then this won’t help. Now, it was a 24inch 1080p, so perhaps a larger 1080p monitor would be easier to read, but I can say I definitely had to zoom in when rendering @ 1080p.
I think your choke point will be CPU not GPU. You should be able to run 1440p with a decent CPU & 3060Ti imo. Just not in Ultra.
I run @ 1440p with an RTX2060. It’s fine. Though I mostly fly GA.