To add to the above, when visiting homes, I’d advise looking beyond the obvious things like decor and general maintenance. My parents visited some and found that the ones which were smarter, tended to have less mobile occupants who didn’t seem to actually use many of the facilities on offer, and policy was to keep them to their rooms. The meal menus looked like smart restaurant offerings, but they weren’t eaten in the dining room with others. Gardens were well maintained by a gardener, but nobody seemed to be in them other than staff.
My parents eventually decided on a home which in the face of it was a bit shabbier and more scuffed, but that seemed to be because the two communal areas (one more lively with a TV, one quieter without a TV) and dining rooms were actually in use. There was a schedule of activities for both of the communal rooms, and there were minibus trips out and about around the area. Meals were more basic than some of the other homes, but more the kind of home-style roasts, cottage pie, sausage & mash etc, that Granny was going to enjoy. There was always an option to eat in individual rooms, but eating in the dining room as a community, was encouraged. There was a small sunny courtyard garden which residents were enabled to use. There were even a couple of folks who had little areas in raised beds, and grew their own wee veggie patches and flowers.