The guide take your backpack. And wait with them on the end off the rides.
The more aggressive rides they have free lockers available for storage.
Currently (June 2019), all but 2 rides accommodate most bags. For those 2 rides (the ones with the highest height requirement) your guide will often hold the bags for you. After your guide has said goodbye, you can use the lockers near the entrance of those rides.
On VIP the guide will take them. When touring movie sets you can leave them on the team.
Your special VIP-guide will take care of that. He/she will take care of you all day. I really recommed the VIO-tour.
The guides hold onto them for you.
That depends on the ride, on some rides you'll be able to store your bag in the footwell but on some other rides there simply isn't a footwell and there you'll have to put your bag into one of the lockers that you can find in the waiting area of almost all rides.
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