When we lift, we'll want to focus primarily on compound lifts since these target up to 3-4 muscle groups with just one exercise. For example, with something like a pull up -- which is a really great compound lift -- this targets your traps, lats, and back.
If we decided to do 3 different isolation exercises to hit the same parts -- shrugs for the traps, pull downs for the lats, and rows for the back -- that would take 3 exercises and 3 times the amount of time to hit the same areas as the pull up.
This is why pull ups are such an amazing selection for your weight training program as it saves you a ton of time.
Just a friendly suggestion.