Google CA can now be used with Cloudflare Certificate Manager
github.com
github.com
But basically Google would be the one that is issuing an SSL cert for a website. Same as LetsEncrypt.
Disclaimer: CF employee
The Advanced Certificate Manager ($10/month) SKU allows you to pick a CA. There are few other options available. https://developers.cloudflare.com/ssl/edge-certificates/adva...
Tweet where I saw this: https://twitter.com/rmhrisk/status/1552357227301744640