I don't blame her for responding to some of these aggressive comments. I can't believe everyone hurling abuse at OP has actually read all her posts. To summarise:
MIL is 67 and reasonably fit
She has responded well to treatment and is about to be discharged
DH makes weekly visits to her and saw her last Sunday. He visits her weekly, takes her out, takes her shopping, does her garden, helps with DIY
It is difficult for him to take time off work, and the hospital is a 3-hour drive there and back
Siblings, who live much closer, have visited her in hospital daily
He has messaged her and called her through the week
DH has hospital phobia and the DC have been constantly ill this year
MIL is on a general ward with many infectious diseases
MIL is anti-vax, did not vaccinate DH as a child, and brought him up to be wary of medicine and medical environments, to the point where he does not seek medical attention for himself
She is due to be discharged today, so he plans to see her at home as usual
🤷🏼♀️ ?