You don’t. Domains registered through Cloudflare can only use the assigned nameservers. You’d need to transfer to another registrar to change nameservers.
I have another cf account this 52FLC.org was purched here through CF registrar. I lost access to that account on or around 06/16/24. Password recovery email never arrives.
I created this new account hopefully to recover my domain. I added 52FlC to this account verified and charged ips. I’m running Plesk Obsidian and went into itd DNS and entered the new name servers.
I’m still after nearly a week to log into my registrar and change the name servers. How do i log into CF registrsr?
My other account that I have had for 10+ years is FidoSysop current email is at [email protected] that went down with my server. Learned an important lesson using email hosted on my own server.
Even if Cloudflare supported a domain migration, you couldn’t simply move a domain from one account to the other without authorisation.
I am afraid you will need to contact support and clarify this with them as the community cannot help with this. Open a registrar ticket and explain the situation.