"Always use HTTPS" Page Rule does not show up in list until DNS is switched to Cloudflare's nameservers

Anyone else noticed this? I’m working with a bunch of clients I manage and I want to set their page rules up before they switch their DNS over, so everything just works, but I only see “Always use HTTPS” in this list once they switch the DNS over:

That setting is only available once the certificate has been issued, which IIRC only happens when the domain is validated by Cloudflare, which requires the nameservers to point to Cloudflare.