I was gobsmacked when I started browsing the physical stuff that my local library has available to check out for free. YMMV, of course, since every library will have different priorities in how they spend their money, but it’s not hard to learn what resources are available to you and sometimes they are substantial.
Oh, and while we’re on the subject of commercial-free streaming services, Kanopy and Hoopla are awesome and something everyone who complains here about paid streaming options should be using a lot more of.