Login Page - Replace Lost Password Link on sub-domains

Can you tell me please how to replace the "Lost Your Password" link on the wp-login.php (/marylogin) page at
https://chat.christiangays.com/
https://dating.christiangays.com/
https://store.christiangays.com/

to

Password Reset https://christiangays.com/choose-membership-level/password-reset/

using functions.php. (I can't use Ultimate Branding due to conflicts.)
Thank you.
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