Mac Password
How do I recover or change my Mac Password?
MacBook Pro 15″, macOS 11.4
Reset Password
A user has three options available.
Follow “How To” steps given in these articles.
1. https://support.apple.com/en-us/HT202860
2. Use the Reset Password assistant https://support.apple.com/en-us/HT212190
3.If you still need help, please contact Apple Support.