Sorry this is so long, but I am still grieving over these deaths which were over 4 years ago.
I know exactly what you mean and had a similar experience with my Dad 4-5 years ago. Firstly, my mum called the GP saying his symptoms had got worse. He was given an appointment at the back end of the afternoon which I had to take them for. She didn't even examine him (which he was expecting) but just immediately said "Good afternoon Mr ... we need to discuss an end of life plan." He knew he didn't have long, because he wasn't stupid, and he had put everything in place like wills etc, but it made him think it was going to be tomorrow.
I get why people have to have end of life plans, I really do - but I think we should all have one - from our twenties say. Make an end of life plan which can be amended over the years, but made BEFORE you are old and infirm. He virtually gave up after this, wouldn't get out of bed, kept telling my Mum to leave him alone because he was dying. We didn't know what to do.
Then the pandemic arrived and he had a hospital stay where he caught Covid and brought it home to Mum - I was talking to them through a window, saw how ill they were, called the same GP who was worse than useless, so I moved in to look after them. They both ended up in hospital (after several ambulance call-outs) where of course I couldn't visit. (Also I had caught covid from them of course and I had never felt so ill.)
Three days after being admitted Mum died - Mum, who wasn't even asked for an EOL plan. The hospital phoned early to let me know and I asked them not to tell Dad until I could phone him and tell him - but they already had. They must have raced to his hospital bed to tell him. They told me he was very upset. I said - no shit, his wife of 65 years dies and he wasn't allowed to see her and is ill himself with no visitors - of course he's upset.
Then, this man at death's door recovers from covid but is still ill, so goes into a nursing home for 6 weeks, but 2 weeks later is back in hospital where he is told (he didn't ask, just was told) that there was nothing more they could do for him. I was allowed to visit for a while as he was end of life. Apparently he asked the doctor if he could just give him something, but of course they couldn't. He just kept saying, I just want it to be over. It was utterly heartbreaking, and if I could have given him some pills to end it, you know, I think I would have.
What was the point of telling him at this stage? He knew he hadn't long. Why rush to tell him his wife had died when he was alone and ill? I am sure there are good clinical reasons for everything, but from his and my point of view, it just seems needlessly cruel.