Sorry OP. We are in the same situation as you. DM and Step Dad both in a care home together, 92 and 86. Step Dad died on Wednesday, and his son was able to visit him, and was with him when he died.
My eldest brother visited on Tuesday, and saw both of them. He said it was really awful, and he didn't cope veyr well. Neither knew or acknowledged that he was there, but both had a member of staff with them, so they were not alone.
My other brother visited DM last night, and has said she was with another member of staff, and a district nurse also visited. So I am happy that the home is being very caring, and medically appropriate. They are such lovely and caring people, can't praise them enough.
I have decided not to go, and older brother will not go again, and additionally he is also vulnerable, so I support him in this, in fact I encouraged him not to visit again. I am just choosing not to go, and can make peace with that.
I think you have to do what feels right for you. Everyone is different, and every family has a difficult decision to make at the moment. Never feel guilty for your decision though, as most of our parents, particularly when they are elderly, are very stoic, and practical, and wouldn't actually want any fuss or bother at the end.
Best wishes to you and your family.