@brohoho I used to powerlift. Had decent but not super impressive numbers for my weight but I had fun. Really helped kickboxing. I noticed when my deadlift reached over 400lbs, no one liked being kicked by me anymore.
Later I added very high rep calisthenics and cut the main lifts way back.
First time in my life at 35 that I could actually build my Pecs. Endurance greatly improved as did conditioning.
My flexibility also greatly improved and I didn't even try to stretch for a side split but was very close to getting one.
My joints felt way better as well. Balance was also way way better.
Routines were something like:
Main lift 3-5 sets of 3-5 reps of about 80% max. Really didn't push it.
Upper body rep day was 180 dips, 250 pushups, 180 chin ups. Some hand balancing and handstand push-ups.
Leg day was 500+ reps of a mix of bw squats, split squats, side lunges, sl deadlifts.
Would periodize in some power work and cut the reps in half.
I would also work in kettlebells and club bells for fun and conditioning.
So now I'm in my 40s and am looking to rester this type of training for a project.