Maybe, but hypothyroid is really common in dogs, especially larger dogs in middle age, which Freckles is. On the other hand it's also seriously overdiagnosed when the answer is actually that the owner doesn't walk and overfeeds their dogs and wants a medical reason that their own shitty petcare is not to blame for their animals' health. It usually causes itchy skin (which is why the vet asked if she'd been itchy) and hair loss in high-wear areas (usually on both sides of their trunk from where they lay down) addition to weight gain and lethargy. While Freckles' coat is a dull, brittle mess I don't see it looking patchy, thin, or having any difficulty regrowing. TT4, the test for hypothyroid, is not usually a test they do in office while you wait – most places will send it or process in office and call you back with results later – but that's just based on my own personal experience going to a few small practices. Maybe she goes to one of those big fancy ones that processes a ton of labs in house, idk.
I think they maybe gave her a trial for thyroid meds to see if they work without a diagnosis because it's tolerated well and there't little real risk if they give it to her for a few weeks and it turns out her thyroid's fine.
I'm also convinced SJ feeds them a vegan diet, which would also explain why Freckles is fat and her coat looks like garbage.
And no, she no longer has the farm. She casually dropped it in a vlog a few weeks ago that she used to run an animal sanctuary and the facebook/website for it has been gone for ages. N/S as to what happened to the animals.