You seem to be stacking a mix of str and shadowlands gems. The shadowlands doublets work best when you focus on SL gems - so it might be worth to either go for mostly str or mostly shadowlands, or maybe 20-80 ratio, not 50/50 like you have.
Only 1 socketed ring - you want 2nd socket to benefit more from gems (i.e. for doublets).
Hatebringer - maybe it changed with the scaling but id say using 2x higher ilvl weapons would be better as base weapon damage is probably more important than a few extra gem stats.
Also if you plan to run timewalking, you best start farming a non-plate non-str-gemmed set (as the "meta" at the moment is to run as little strength as possible for timewalks, which includes running mail/leather/cloth gear)
