I scouted the local library at the state university. Not bad, quite usable,with an elevator inside, but full of daunting staircases and hills surrounding the building. I have about a 15 minute walk from the parking area to the building. Carrying a laptop and notebook in my backpack as well as water and assorted things, plus my purse, that's just not happening. So my husband drives me when he can on weekends and evenings.
Some hospitals have rooms where you can get past the paywalls and I think I found one of those. They are often much more convenient than a university, which is designed to support students not unhealthy people seeking to regain their health.
By the time my brain was functioning and I got there, I had two hours to try and get oriented. I found something specific to my medical history about kidneys and magnesium balance, it was referenced in one of the articles above (off the top of my head, the hindawi one).
As for campus wandering, I'm thinking of getting a trike (not motorized, or just assist for uphills). Anyone do that to improve mobility? In my dreams I'm using a trike that allows me to ride for about 30 minutes (more than long enough to get almost anywhere before I get tired... because if it senses torque, it gives me a boost from a silent electric engine. Recumbent or upright I don't care, but I haven o wish to try and balance with a backpack. In this dream there is a basket behind the seat, spacious enough for my backpack and purse (tied down for security). The campus is well supplied with bike paths/lanes, that part is not a dream.
I'd also probably ride a trike instead of my once in a while walk in the outdoors, I bet I could get farther, and down some well-cleared trails. But the point would be to make the campus more accessible. And trikes are around $300, not ++thousands like anything motorized.
I'd prefer to be independent but the campus does have a campus "disability" parking for people who don't qualify for a handicapped sticker, but still need closer parking. Most places, stores, hospitals, doctor offices, etc, I don't have to worry, it's a short walk, but I'd forgotten how much walking you get just automatically because you're on a campus. And to avoid the stairs means you have to go looping the long way around.