How do I turn off the password requirement in macOS?

How to log in automatically to a Mac user account

Do suggesting all the article for more details

There are some specific requirements for this to work

Excerpt from link

" if the setting is dimmed or unavailable

If the automatic login setting is dimmed or doesn't show the account name, then manual login is required. For example, manual login is required in these circumstances:

• FileVault is turned on. 
• Your Mac is supervised by your organization, using a profile that prohibits automatic login.
• The account is set up to use an iCloud password to log in. In that case, you might also see the message “A user with an encrypted home folder can't log in automatically.” Learn how to change the login password. "

I seem to get asked to input my password all the time, but it is definitely not required, as I am the sole user of my MacBook

You are not the sole user of your MacBook. There are about 100 other users that do various things behind the scenes. Part of the security is not allowing those unfettered access to your data. It’s not likely that anyone will manage to hack your Mac, but you make it a lot easier by not password protecting your user account.

I’m not sure what you consider. “all the time,” but it shouldn’t be what I consider all the time. If you have somehow set a different password for your keychain, than your login then you would have to enter that password every time something needed one of the entries in your keychain. I enter my password to login or log back in from the lock screen, but unless I’m doing some sort of administrative task that requires me to elevate my privileges, I don’t have to enter my password.

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Have you setup Touch ID ?

Use Touch ID on Mac

Almost everything in settings is Password Protected on Sonoma and some apps you install as also using the password and I haven't found a terminal command to get around it, though there probably is one that developer use.