I have a very slow Internet connection (5 Mbps down, and even less for upload). Given that, I always download movies at 720p, since they have low file size, which means I can download them more quickly. Also, I don't notice much of a difference between 1080p and 720p. As for 4K, because I don't have a screen that can display 4K, I consider it to be one of the biggest disk space wasters.
Am I the only one who has this opinion?
I typically look for 1080p X265 encodes around 2-4 mbps to save disk space. I will download higher bitrates for anything with a lot of film grain since it will get very blocky at lower bitrates.
I can't tell much difference between 1080p and 4K unless I'm very close to a large screen. Also, most 4K files are HDR and I don't have anything that supports HDR.