Namechanged just for this thread. This is my guestimate of what happened.
It is incredibly unlikely in 2023 that a hospital would not have put a transIDing male on a women's bay. The NHS is thoroughly captured and every hospital in the land had policies allowing gender self ID until 5 minutes ago, not to mention Annex B. So that part is highly unlikely to be true.
Many if not most cancer services (or any acute services) run at above capacity. Patients are put as outliers on other wards all the time, cancer patients who have to be in for chemo have to be in when their chemo is due, no matter how full the hospital is, so they either get put wherever there's a space or they get treated as a day case even when the chemo would usually be given as inpatient. Chemo isn't delayed for 16 days because of bed issues. It just isn't. Even in the first COVID lockdown we still had to find a way to admit people with COVID symptoms, if their chemo was due. So that part is highly unlikely to be true.
Things I think may have happened are:
He wasn't correctly diagnosed until too late, he was under a general medical service or some other wrong service because no one realised he had an aggressive, I'm guessing B cell, lymphoma. Young people with cancer are often diagnosed late and with a B cell lymphoma you haven't got time to waste, it grows very fast. I knew of a case years ago where surgeons removed the tumour having mistaken it for a sarcoma - 48 hours later it was back to the size it'd been before the surgery. That's nothing to do with trans.
Or, he was diagnosed and under haematology but was an outlier on a random ward due to bed issues, and the random ward didn't know how aggressively this kind of lymphoma can go and didn't clock how fast he was deteriorating. Especially they may not clock it in a young otherwise healthy person, those have a habit of looking ok until they're extremely unwell, in a way that doesn't happen with older people.This is possible, but he'd still have been seen by haematology at least daily in ward rounds on the random ward and they absolutely do know, so seems somewhat unlikely. Also nothing to do with trans.
Or, he came in with such advanced disease that treatment would have been futile,he was put in an available side room for privacy at end of life and expected to die imminently, and as he was young and strong he lived much longer than expected and needed much heftier doses of serious pain meds than either random ward, or haematologists unused to looking after young people with cancer, were used to or comfortable giving. Hence 16 days without treatment and uncontrolled pain. This is possible, but again, nothing to do with trans.
TLDR: no way a transwoman would be refused a womans bed in 2023, and whatever happened that was less than ideal was extremely unlikely to have been anything to do with trans discrimination.