Google I have essentially no trust in at all anymore (or maybe ever), Cloudflare I trust to a ‘reasonable’ degree; by that I mean I don’t believe they would (at the and leading up to the time of writing this comment) sell identifiable user data from their 1.1.1.1 DNS service and they have a very high technical skill level when it comes to internet security especially with regards to routing and network metadata. However it’s still not ideal or even slightly close to perfect security and while I’d trust Cloudflare over Google in a heartbeat - like anything that could change and better options that are also easy to use may (will likely) pop up.