Covid positive person attending the musjid

Q:

1. If one is diagnosed with Covid, should he isolate and read his salaah at home, or should he go to the masjid if he is affected mildly (i.e. body strength, very light cough, and fever, minor difficulty in breathing, etc.)?

2. If a person who is Covid positive and goes to the masjid and the other musallis are aware that he is positive, will he then be sinful for inconveniencing Muslim brothers as unfortunately not everyone is comfortable being around the sick these days?

Divorcing a woman who consumes alcohol

Q: I married a lady who converted to Islam two years ago. Despite many discussions and arguments, she continues to consume alcohol which we both agreed was something she would not do. Everytime it’s saying sorry but it all recurs again. I am now of the view that I have to divorce her even though I understand the importance of introducing and keeping someone in Islam.

Playing Zepeto

Q: There's a game called Zepeto. It is a dress up game in which one's face is cartoonized. I gave this character my name and my face got cartoonized. While playing it, the game got stuck and a Christmas dress was highlighted so I thought that maybe one has to first wear this and then the game would progress so I kept clicking on it then found out it was some error. Is this imitating kuffaar? I had these thoughts in my head that its better not to play this game at all. Does this make one a kaafir?