I do not wish suffering on much of anyone. Hospice care may be a hospice facility, hospice care in a SNF or ALF, or in-home, depending on patients' situations and what is available in their area. In general, being under hospice care means that the patients' physicians' good-faith diagnosis is that the patient has less than 6 months to live, irrespective of treatment of their condition(s). Hospice care means that treatment to try to "cure" or control those conditions is ceased, and administered treatments are for the comfort of the patient during their dying process.
It is common, here in Silicon Valley, for patients to die within days of entering hospice care. It is not common, but there are occasional patients who either remain under hospice care for over a year - doctors' good-faith diagnoses are fallible and sometimes patients are tougher than expected - or who improve contrary to expectation and no longer qualify for hospice care.
My comments above are not from first-hand knowledge