I always try to get high quality/transparent HD encodes (internals on HDB or failing that golden popcorn on PTP.) however, if im being honest im really fine with even a 480p encode that potplayer has automatically upscaled
That's probably due to the hardware you're viewing it on, I've found it becomes very noticeable on a larger UHD/HDTV whereas a laptop or pc display doesn't see much difference in quality. I still grab the transparent 1080p's though as I like to know I'm getting the best quality I can, especially if I ever upgrade the hardware I view it all on. Also the quality control is crap with a lot of lower end public encodes so that's another reason I stay with the transparent 1080p stuff.but the sad truth for me is that i'm barely notice difference between a shitty encode for example a movie that TayTO encoded it's 1080p and it's size is about 14 GiB and some encodes that can be found on RARBG or other public places like that which is a 1080p encode with maximum 3-4 GiB size.