It really depends on the media and my level of interest in it. I was only bothering to try and get 1080p copies of stuff I liked due to only having a 1080p TV for so long. But I did make efforts to get 1080 where possible (and based on my drives at the time) even before I had a HD TV and the only thing I had to actually watch that resolution on was my laptop. And that was because I wanted to make sure I had (at the time) the best copies of torrented encodes of stuff I really loved and would want to look good later. But I got a 4K HDR TV a few months ago as my 13yo 1080p TV started just giving black screens on all inputs. And while a lot of things are fine, the limitations of the encodes are showing much more.
If I am just checking out something that I have heard about or was told to check out by a friend. I might just grab a 1080 or even 720 copy since they are often the top seeded results. Then go back and find 4k copies if I really get into it. Though my main issue today is similar to back when I was using my laptop. Storage space. I started ripping my Blu-rays and I am the worst about dealing with compression stuff. So I really really need to get on making that media server I have been "meaning to build" for years. Get some 18TB or 20TB drives and RAID the shit out of them for redundancy. lol.