I dont know tbh I've never tried
How do I change my gmail account?

Go to google and do make a other mail. Then add it to your account as contact then you get a new mail.

Maybe check if you entered your email address correctly.
confirmation will come to the new Gmail email you specify. You should have no problems

Maybe check if you entered your email address correctly.
confirmation will come to the new Gmail email you specify. You should have no problems
i entered it correcly

https://support.chess.com/en/articles/8588078-how-do-i-change-my-email-address
Also check spam folder
I'm trying to change my gmail account and it says "A confirmation was sent to "my gmail". Please use the link in that email to finalize your account change." but i never receive the confirmation.