So this is off subject but hits a point about strength training. I'm old, like mid 50's. When I was young I was fairly strong for my size, bench pressing in the 300's at a weight of only around 185. But of course those days had passed a long time ago. A few years back I joined a crossfit gym. When it started most things were body weight exercises, they included quite a bit of pushups. I actually joined to rehab after rotator surgery. So months went by and one day they did a max bench and I was shocked to get 315 up. I hadn't lifted much more than 200 lbs in a decade or so. I was shocked that doing pushups ended up making me strong enough to lift that kind of weight. So point number one is that you don't have to lift heavy weight to be ABLE to lift heavy weight.
Point number two is this, after that the gym I went to changed their focus more and more to olympic lifting (because they finally had enough weights to go around). That led to me injuring the OTHER shoulder and having to have surgery. I no longer do crossfit
point two, too much heavy lifting can lead to injury. I realize that these are young men and frankly better human specimens than I ever was but I think the points are the same, There is more than one way to get strong.