Monitor lizards - Who is right for them?

[Cheesenugget]

I have other herps but no monitors. My research from reading caresheets to watching videos from expert keepers who specializes in Varanis suggested that they are as a whole not good pets for beginners or those who lack the resources to care for them properly.

My point is this: there is a popular pet Youtuber named Taylor Dean who keeps numerous pets in her 2 or 3 bedroom apartment shared with her boyfriend. She has a LOT of animals ranging from several ball pythons and other snakes, 2-3 hedgehogs, lots of fish in several tanks as big as a 125 gallon, bearded dragon, leopard gecko, blue tongue skink, 2 cats, a crab.... The list goes on. She stated that to date, she still keeps some of her pets in her closet due to lack of space. A few months ago, she thought she purchased a white throat monitor because allegedly her pregnant friend wanted one, they were going to share custody with her housing it in her apartment and provide care 100% etc... She impulse bought the lizard with no proper enclosure ready for him. After the purchase, she went on vacation, came back and posted a vid about her new pet.

Almost immediately many commented that it was a black throat monitor. She had no idea she was caring for the wrong species for at least a month that has a different set of care requirements.

Then she supposedly tried to re home it to a rescue because she does not believe in keeping wild caught animals, even though her fish tanks are filled with them.

Recently, she announced that she is keeping the monitor lizard because the lizard took to her. She stated the reason being is her local rescue would be keeping him the same way so why not her so she can spoil him. She has no experience working with monitors.

I have never heard of a monitor this size kept indoors, much less in an apartment crowded with other pets. Can someone with experience confirm if this is true? Can a large monitor lizard live happily or at least have most of not all needs met being cared for this way? Can a baby who appeared tame remain tame as an adult? Are her other pets safe around this lizard if she lets it roam loose in the apartment?