They will likely also offer free streaming (though I realize that is "another service" in the sense that you again have to log in, search and browse) like Kanopy[1] which does offer a lot of older films, foreign films, and documentaries.
Yes. About a year ago, I resubscribed to Netflix DVDs because the library is so much better than what's on streaming. I feel like people have forgotten that the DVD library is enormous and has basically every movie you'd ever want -- and now that fewer people use it, you don't have long wait times anymore.
1: https://www.kanopy.com/