There are weaknesses with all search sites/engines. A.o. Startpage and Duck struggles with delivering results from the right region as they tend to relate to wherever you enter the web by the location of your VPN exit point regardless of your local settings. Can be annoying.
There is no such thing as privacy/anonymity on the web. Even if you take rather extensive measures. "Every" site collects and provides "crums" to Google and/or whatever, more or less totally regardless of preventive measures carried out on your device.
The best thing one can do is to assume tracking and identification and avoid stuff you don't want to be assosciated with. Regardless of stance, the media picture is heavily massage before you get to it through various platforms, everything might be true (or not), but the chances are you get what's enhances your opinion or guides you in some direction someone else than you benefit from. Wherever you belong, get your info from a wider variety of sources, and not from aggregating services. Get some from outlets with a different perspective than yours.
That's pretty much valid for anything. Tech and what not.