sounds like you actually train
I had a 1rm of 120kg in my early 30's @74kg. Lots of gym, heavy reps, big rests, eating heaps no cardio.
Fast forward to 2020, I did an amatuer mma fight. Lots of conditioning - pressups, burpees, pullups, kettlebell stuff. hard sessions. A tonne of drills, padwork and in the last 8 weeks sparring 5x a week. No gym.
A week after the fight went to the gym with a friend, did some bench for shits and giggles. Got out 15 reps on 70kg (my bodyweight) and 1rm of 92kg.
Was pretty blown away by muscle memory and just what a tonne of plain ol pressups will do.
Muscle memory isn't simply your muscles remembering how to do things, it's INGRAINED neurological programming information that is literally stored on your body's harddrive (nucleus/CNS/capillary network/joints/bones) and ready to open at your command. Trouble can occur if the machinery can not keep up with the demand.
Your tendons and ligaments remember what 120kg's feels like... depending on how often you hit it. If you just wake up the muscles a bit (consistent training), you can get reach relatively close to your all time PR. And with proper training, achieve your pinnacle lift again.
In fact, a long lay off can even be beneficial... by letting the hard to heal/train tendons and ligaments fully heal.
We're pretty much same body weight so I'll indulge you a bit
I maintain an easy 180kg DL, rarely ever training above 100kgs.
(maybe go heavy once every 6 weeks or so, just to see where I'm at)
I don't bench, and haven't, at least since November of last year, and rarely even before so I couldn't tell ya where I'm at now, but my all time best was 245lbs (115ish kg?) for 3 reps.
I never really gave a fuck about benching
And having been a coach for the last 18 years, I'd say upwards of 90% of shoulder problems and injuries stem from benching and incline benching... Kinda insane figure, but I implore you to ask someone with a shoulder injury how they hurt it...
Hence I found myself questioning the efficacy and carryover to sports. It's absolutely not a useless exercise. My tits definitely feel huge after a set, but I'm not a bodybuilder. I like to armwrestle and strangle people.