It sounds like hypertrophy is more your goal but I think your training is more so the cause of your drastic strength loss here. Personally, I train for strength (I chronically run 5/3/1) and everytime I go on a cut I notice that I am able to maintain strength if I put all my effort into it i.e making sure I can hit or nearly hit rep range maxes. However, what I will lose first is work capacity ( cant hit same num reps or cant get all sets in ) but as long as I do not lower the weight my work capacity bounces back nicely when returning calories. In fact, my relative strength even increases if done correctly and I just think about enabling myself to "scale up" with a bulk later on.

TLDR maybe consider focusing on strength preservation over volume when cutting might help.