Strong bro science, cardio acceleration. Gain endurance, size and strength. Don't fair over-training, yh sure.
Work towards a goal. You reps and sets will be different depending on what you want [size, strength, endurance] Pull, Push, Legs. Do compounds and then isolations for the neglected heads.
thats the second part of stoppani's shortcut to size. the short cut to size is quite good imo, although i usually dont listen to bodybuilding routines. And i dont see how this is over training, just eat right and sleep well. Ice cream fitness 5 x 5 would be the best place to start imo however dont bother with barbell shrugs, the big lifts work traps enough
Thats why its 5x5 for compounds + 8-12 for isolation.
It's more hypertrophy based than something like SS
Also the problem with PPL is that you get leg day which people skip as its hard + not enjoyable if you're new. Also doing a body part once a week isn't "optimal" tbh.
It worked for you though, fair play you made it work and you look good... Mirin