I'm using 32" 4K monitor and I use 125% scaling.

I'm drying about 40-50" curved one with 8k, basically somewhat similar pixel density as what I have now, but being much bigger.

Yes it's not going to be usefull full screen, but I can limit game window to reasonable size. But during productive work I wish I had "distant space" like second screen to put windows out of main focus. I can buy second screen now, but I want to have one giant.