20-minute "body weight workout" (without equipment) for the lower body.
5 rounds: 3-minute time slot for completing the 4 exercises (3-minute window) - last exercise max. reps in the remaining time; 1-minute break between rounds.
15-minute "upper&lower body workout" without material.
EMOM: every minute on the minute (perform a set number of repetitions of an exercise at the beginning of a minute, the remaining seconds of the minute are for recovery).