The past few releases I've been swapping back and forth between 1440p and 1080p, and after today's update I definitely saw a pretty big jump at 1080p, but not really much movement at all at 1440p. Though, it actually ran without crashing frequently at 1440p, which it absolutely did not do before this patch, so I'm thankful for that.
For reference, I'm running a Ryzen 5 5600X and Radeon 5700XT, 32 GB 4200MHz RAM
Here's my rough notes
@1080p before today
100-120 FPS in space, dips sometimes down to 60 when approaching stations
65 FPS in concourse/settlement, regular dips to 35-40 fps
@1080p after today
130 FPS in space, still dips when approaching things, still around 60, maybe 65
75 FPS in concourse/settlement, still dips but rarely goes below 50 or so
@1440p before and after today, no difference
100-120 FPS in space, dips on approach same as 1080p, not too much difference
60 FPS in concourse/settlement, regular dips to 30-35 fps
Though I will say, these are super general case. On a concourse, you can swing the FPS from down around 30 to 90 if you run through the bar and look at the wall. It's still not super consistent at least by the numbers. Though again, I will say before today I could not keep odyssey running at 1440p for more than 30 minutes, if I was lucky. Often I'd get no more than 10-15 minutes before crash to desktop, while 1080p has worked fine. I am writing this after spending 2 hours in game at 1440p, doing a settlement restore power mission (with 15 bonus raiders), and then bouncing around a bit to a few stations looking for gear. (crosses fingers) No crash so far.