We have more broadly incorporated Microsoft Bing into our results, using a unique solution specifically fitted to our privacy promise. Our collaboration with Microsoft also has enabled us to provide a superior mobile experience. You will see benefits like better search suggestions, fewer ads, and greatly improved similar image results, among others.

https://support.startpage.com/hc/en-us/articles/12727471498644-What-are-Startpage-s-enhanced-search-results-

I don’t know if this applies to the actual search results or the widgets. But upon checking, the results are actually still closer to Google but it filters out some results that I find useful. It also pulls up the first Wikipedia article it can find in the first page and displays it as a little widget on the side even if it’s far from relevant.