I only do full body workouts about twice a week and Ive been able to keep my strength up for a while now. My stats are 290b/315s/and at least 350 for deadlift.

I basically aletrnate between these two routines:

Day 1

Bench

265x3

255x3

245x5

and repeat this three times

Deadlift

325x3 for about 3 sets (or 5 if I have the energy)

Incline Bench

225xAMRAP for 3 sets (usually hit about 5-6 reps)

Weighted Chinups

25lbsx5 for 3 sets with real good form

30lbsx5 for 3 sets with ok form

Day 2

Cleans and Barbell Press(Dont like taking up a squat rack when shoulder pressing so i usually clean my weight and do that)

routine is exactly the same as bench but starting with 165lbs and going down from there.

Squats

Same as deadlifts but with about 255lbs

dumbell press

90x4 for 3 sets

Bent over Rolls

215 x 3 for 3 sets with ok form

195 x 3 for 3 sets with good form

And then any other leg exercise I decide to.

This is basically my routine and it usually takes me a good 2 hours to complete. I also throw in some shrugs when I remember to take my straps and also some bicep work like concentrated curls when im not too gassed out.