I use that as well. It's great because google still give the best results and startpage (mostly) just proxies the requests to google.
That's btw. the way most other alternative search engines work as well. E.g. ecosia is mostly bing.
In any case, I do trust startpage over duckduckgo, because they're (more or less) European. I.e. would get into a lot more trouble when spying illegally.
Sorry, but that's just incorrect.
That's US-only data.
https://www.antenna.live/post/a-first-look-at-the-impact-of-netflixs-password-sharing-crackdown