Zagitova is probably perfectly fine with her living conditions while in Moscow. She has her babushka, her pets around her, and her parents and close friends are only a Skype call away.
I think she spends most of her waking hours at Sambo-70, either training, relaxing, resting or socialising with the other athletes training in the complex.
No doubt there is a nice cafetaria, a game room with games like darts, billiard, ping pong, a computer room with Playstation etc. Even a study room in case you want to do some homework or school assignment.
Plus of course lounges to rest or to watch television on comfy couches, and private resting rooms to take a healthy power nap after lunch.
Given her fame and the fact that she is young, beautiful and desirable I think she has grown wary of meeting strange people uninvited. Almost everybody will want something from her, not to mention inappropriate 'male attention' coming her way.
I wouldn't be surprised is she is actually chauffeured around instead of having to use public transport and has some unobtrusive professional guard service protecting her apartment and movements at times like these.
Being Olympic Champion in such a high profile sport is a lonely existence and Alina will probably feel more at ease the company of other sportspersons and past Olympians for they understand each other.
Loss of privacy is the high price all celebrities have to pay and that makes most of them very glad when they can finally leave the spotlight and be a normal person again.
I for one hope Alina still finds the calm, time and energy to draw and paint and express herself in an artistic way, perhaps letting part of her soul emerge in her art.