re: Question regarding muscle loss

I very much appreciate y’all’s input, I don’t post much but read frequently, y’all’s input helped me change my life.

Sorry, I was trying to not put up a wall of text in op, I’ll clear up some things:
Yes, I am getting stronger.
Yes, when I do inbody tests, everything is as duplicated as possible re workout timing, eating, time of day, urination etc before tests.
I’ll generalize daily work out-both types, 5 days a week, alternate the type of workout,cycle with above average intensity for 30 mins.

Weights, full body, only lift “heavy” once a month, I’m getting older. Usually work about 60% of max, 3 sets of 8-15 reps. Generally exercises are bench, tow, shrugs, curls, tri extensions, reverse lunges, Romanian one leg split squat, calf raises. Usually mix in some alternate, but that’s the basics. Worth noting, I have back problems so I avoid dead lifts and traditional squats.

Body weight day-these numbers are averages-300 push-ups, 120 pull ups, 300 air squats, calf raises, box jumps. Usually incorporate rings, bands and the like. This workout varies a bit, but the above is typical.

My goal was to lose weight and look/feel better, I’m there. Now I want to be lean fit and strong. I’m talk and skinny, like a WR build,not a DE build. I’ll never be super strong links benching 450 pounds. I want to stay below 10% BF.

Bottom line, I guess it freaked me out to see a loss of 5 muscle pounds. While I am getting stronger, and I gave good definition, I don’t want to lose hard earned muscle for stupid reasons. Again THANK YALL, I very much listen to what I read here.