I generally avoid Cloudflare where possible personally because at the the end of the day, they’re a giant big tech company based in the US, with pretty much unprecedented control over the internet.
With that said, last time I looked into their privacy policy, I thought it was acceptable, but that’s been a while ago, so not entirely sure nowadays. Either way I’m not a huge fan.
Not Chromium, Extremely customizable and configurable, and add-on support on mobile, to name a few reasons.