Use Librewolf and Tor 😉

Tor doesn’t seem to help here if I got it right, because the data traffic is assigned to your phone number.

I’d say it depends on your threat model, but you may consider to always use a proxy, VPN or the like. Blacklight is good to check sites. There are also some websites to check for GDPR compliance, e.g.,. https://illegal.analyticsscanner.com or https://2gdpr.com

Consider Librewolf, YaCy or (ideally self-hosted) Searx.

Some may make more money than others, but if they spy on you it means that they spy on you and eventually sell your data. You’re the product. And as someone already said in this thread, you cannot self-host. This appears to be neither decentralized nor private.

They’re using Cloudflare which is a bit weird for a “private” service.