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?
You don’t really prefer a lower resolution, you just work within the limitations you have.
Either your display is really shitty or you need (better) glasses. This isn’t like the difference between 60 and 144hz where its barely visible for untrained eyes.