My wife surprised me with this model instead for Christmas. Well, kinda because she already knew which ones I was considering.
https://www.bestbuy.com/site/lg-27ul600-w-27-ips-led-4k-uhd-freesync-monitor...?skuId=6329956
I haven't got it permanently set up yet, but so far I'm loving it and the extra viewing space it affords. The top image is my laptop's built in 13" (or thereabouts) screen, and the bottom is the new monitor. Both have the photo zoomed in 1:1. Depending on how much I crop a photo, it almost puts an end to panning around at that zoom level.
My initial plan was to feed it 1080p then upscale it in the monitor settings. When I initially plugged it in and did the display setup it automatically fed full 4k to the monitor. That was a pleasant surprise. It only does so at 30Hz (the monitor is rated at 60Hz refresh) and I do see some minor ghosting/artifacts if I try to move things around too much but that's somewhat rare and doesn't impact editing at all. I'm also only using SDR instead of HDR. So yay, I get to use the full resolution. For those concerned about text being too small, not really an issue. I can read everything just fine.
Now to just get it calibrated. I somewhat rough adjusted it by eyeballing it compared to a print, so it's a bit better than out of the box.