I don't mean it's a shelter for them in the literal sense. As in a place to sleep. It IS however meant to be a safe harbor - a place they are welcome to simply EXIST.

Ask google "is the ethos of libraries to help the homeless"

Here's what it says: The core ethos of libraries is to provide universal, equitable access to information, resources, and safe spaces for all members of a community, including people experiencing homelessness. While public libraries are not specifically designed to be homeless shelters or social service agencies, their foundational commitment to inclusivity means they naturally serve as a vital lifeline for marginalized populations.

This has always been the case.