Pretty much how I work as I only go to the gym twice a week now (well, not for these two weeks...) and do legs and deadlifts, shrugs & OHP.Have a look at Bigger, Stronger, Leaner by Michael Matthews.
In short you go heavy, focus on compound exercises, rep range 4 to 6, and do one muscle group a week.
In practise you kinda hit two muscle groups a week because you work arms on one day and then on another when you work back, you're doing bicep. Similar for chest days, you also work tricep.
I'm 50 and it means you can smash your legs doing squats and you get six-days to recover before you smash them again which means - hopefully - you can add a little weight or more reps.
Rest of the stuff is at home bodyweight - harder to get pure weight in as it's more down to reps and progressions.
Seem to be keeping on top of things though.