Yes wikipedia does have ads every time they fundraise
I use libredirect to complete privacy-focused searches across various front-ends, from YouTube to Reddit to Wikipedia, and my searches are distributed across various instances, so no, a single random third party is not getting all of my searches.
'The point' is to share an article on the guy who owns Brave. I've provided additional context about wikiless as requested, but if you need more context moving forward, please do a google search.