The one big thing I recall from my 96 visit is the level of homelessness, and I can't imagine it's improved, though apart from asking for spare change I seem to recall they mostly left you be. But if anyone has any specific advice I'm happy to hear it.
Yeah, that's definitely a thing. You can see why they built the Sanctuary Districts
there. I think so many homeless people emigrate to SF purely because it has better weather and lots of public parks for them to sleep in.