I visited this WHS in January 2022. The whole area in front of the entrance to Hospicio Cabañas is a modern jewellery trading center and would have serious issues for inscription nowadays, especially with all the telecomunication aerials in most buildings. That said, the quality of the preserved exterior one of the oldest and largest hospital complexes in the Americas, and especially that of the striking Orozco murals inside, warrants its inscription on the WH list.
The Hospicio Cabañas is open everyday except Mondays, and on Tuesdays entrance is free. There is a UNESCO WHS inscription certificate just behind the security personnel checking your tickets just before you go in, and a UNESCO WHS plaque on the right just after the entrance. An "early" visit (first entrance was at 11am) when we visited on a Tuesday (they still give you a free entrance ticket if you collect them) meant that we had the whole place for our own for a few minutes, so we made the best of it by heading straight to the area with Orozco's striking murals. The first one on the right bears Orozco's signature, the highlight mural is the central Man of Fire on the dome, and from the minor ones I really liked the one with all the gods and idols in the world. If you want more information on the murals (great as an audio guide when you visit), make sure to bookmark the official video explanations of each mural on youtube (search Cabañas Museum Video Explanation 1 to 9). Within the Hospicio Cabañas there's an excellent cafeteria with original art pieces as well as a small cinema open in the evening (back entrance). If you enjoy Orozco's murals make sure to also visit for free the huge Hidalgo mural in the Palacio de Gobierno de Jalisco and other murals in the University Museum of Guadalajara. In Mexico City there's also Orozco's Catarsis in the Palacio de Bellas Artes.