Heheh you made me laugh about your LG 1080p, because i can totally relate to you in this regard. I have returned 3 tv sets in the past month (sony x900f, samsung q70r and q80r) due to whole lot of cons. At home, i still have my 2014 LG 1080p model (LB 670V) and i can tell you the more i'm experiencing these new fancy 4k sets, the more i'm realizing that a good ol' 1080p LG beats them all. It doesn't have 4k and hdr, but it has a backlit fald, no blooming issues, the best angle viewing ever and the best motion out of any tvs out there. No joke about this. I've seen it with my own eyes. If it weren't for sony x950g, i wouldn't buy anything and i'd just stick to my old LG. I think that these new blooming and motion issues are more pronounced on 4k tvs, then they were on older 1080p sets. Btw, were you happy with the motion on x950g?
Anyways, i wish you a good decision about tv. Good luck!