I did own the 12GB version of the OnePlus. I wanted to keep the phone but the soft corners of the screen and very lackluster video quality was a dealbreaker for me.
I wish (Samsung) offered more devices with the ceramic back, particularly the Note10+. I like the larger, more square screen of the Note10+. Before that, I was using the S105G. Funny how with the November security update that all the phones, even the lowly S10e now have all of the camera features that were only on S105G and Note10+ phones.