1Password requires login at every Windows startup

"it doesn't need to be difficult to remember or type."

"16 random characters should be enough or a bit longer if you use a combination of dictionary words to make a passphrase."

You see, to me, these two statements contradict each other. That's the trouble with strong passwords.

@Dogmatix The master password requirement is one of the main reasons that storing your passwords in 1Password is more secure than saving them in your browser. However, it doesn't need to be difficult to remember or type.

The copy of your password database on 1Password's servers is additional protected by the Secret Key. So your master password just needs to be strong enough to resist attackers who have access to your device. 16 random characters should be enough or a bit longer if you use a combination of dictionary words to make a passphrase.

well heres my soloution i have 3 browsers edge, chrome, opera i have removed all passwords except 1password which is saved in all browsers.
i have master password saved in 1password as a favorite i login to windows hello with a fingerprint reader
and from notification/1password uses windows hello on startup
i have browser extensions but prefer 1password.com
on startup it either uses saved 1password login or browser saved password
my password is quite complex

Well, that's a bummer. My PC has a password login already; entering a another password (or the same one again) to start a password manager seems a password too many. The point of a password manager is, after all, to make password entry easier.

On my smartphone, 1Password is happy to use biometric authentication, i.e. fingerprint recognition to login. Now, there exist fingerprint reading devices for PCs. Could 1Password be persuaded to accept authentication by fingerprint instead of password entry?

The short answer is: no.

The slightly longer answer is "may be, kind of". First, make sure you install and use the desktop client of 1Password and activate the browser connection. Otherwise you will not only be asked at system login but also every time you start the browser.
Second, you can activate Windows Hello to use a short PIN to log in to Windows instead of your hopefully longer Windows password. 1Password is able to also use the Windows Hello PIN if it requires entering the password to unlock. However, the very first time after you boot your machine, you still have to enter the 1Password master password to unlock 1Password.
There is no workaround.

You should use a password that's balanced between complexity and still comfortable to enter. If your password is so complex, that you (or your wife) refuses to enter it, it's too complex and actually lowers security, because you try to circumvent using it. In this case, use a less complex password.

Think about it: what's more secure? You using 1Password with a less complex master password, or you not using a password manager at all or a password manager that doesn't require any master password at all.