I am more entertained by this than I should be. Back when Stadia launched I was in a Reddit thread saying that the blatant double-dip business model of subscriptions + purchase stunk and that I had no faith in Google to not shut this storefront down shortly. I was immediately roasted by a flock of obvious astroturfers telling me that this was an absolutely serious move by Google to dominate the console games market a…
FWIW, the subscription wasn't required. It just got you discounts on games, access to a rotating collection of "free" games, and 4k streaming (rather than 1080p you get without a subscription).
Their communication about all of this really sucked though, because most critics who didn't try Stadia (and even some who did) thought the subscription was required to use it at all.