[tialaramex]

With a very large property like Wikipedia it's probably unavoidable that it'll be possible to determine that you contacted Wikimedia, even just from IP addresses. If that's too much you'll need TOR.

But far from "the only thing" being page content, almost everything is "kept private" with HTTPS, the request itself including any body provided, and the response to that request.

So while "visiting your request" might well get them their own copy of the content of a particular encyclopedia page you looked at, they're stuck with not knowing what that request was.

And eSNI plus DPRIVE is the final dash to a finish where the ISP doesn't even know which Wikimedia host you visited, assuming they all share the same IP ranges. Italian Wikipedia? Simple English? Wiktionary? Wikivoyage? That's suddenly an ocean of possibilities.