In the menu bar, click Notes > Reset Password > OK.

Enter your new password and password hint.

If you're prompted for an admin password, choose 'Forgot all passwords'.

Press and hold the power button (Touch ID) until the screen says 'Loading startup options'. If you have a note that uses an old password, you can update it to the new password when you enter the old password, remove the old password, then apply your new password to the note. Try these steps to reset your user account password: Shut down your MacBook Air (M1, 2020). When you reset your Notes password, it doesn't delete or change the password of your notes that are already locked.

If you then enter the correct old password, you get the option to update that note's password to your current one. When you open a note locked by your old password but enter your current password, you'll see an alert that you entered the wrong password with a hint for your old one. If you have multiple passwords, you can't tell which password you should use when you look at your notes in the Notes list. Learn how to reset your password for QuickBooks Desktop for Mac.Forgot your password No worries. This could lead to you having multiple notes with different passwords. It will, however, let you password protect any notes that you create from that point forward with the new password.

You can reset your password, but this won’t give you access to your old notes. If you forgot your password, Apple can't help you regain access to your locked notes. If youre asked to create a new keychain to store the users passwords, click OK to restart your Mac. You can unlock a note only when you enter the password that it's locked with. If your Mac doesnt restart, but immediately asks for your Apple ID credentials, enter that information and click Reset Password. See the following from Keep your notes secure with password-protection - Apple Support

How to reset lost mac password