I'm honestly curious, are all the analytics tools, which rely on making third party queries, still efficient with extensive use of adblocking these days?
If not, then logs of webservers are the only 100% reliable place (if available of course), so old-style tools like awstats, Webalizer, etc [1] should have a rise in popularity again.
[1] https://en.wikipedia.org/wiki/List_of_web_analytics_software