LastPass is good for storing and using username-password pairs for websites.
Some websites (such as for banks) have more complicated login procedures which don't fit the standard LastPass system.
For these websites, more information must be stored, such as security questions, multiple passwords and grids of characters.
LastPass has a Secure Notes feature, which allows such data to be stored.
Google Keep also allows such data to be stored. I find Google Keep quicker and easier to use and would prefer to use it if there was no security disadvantage.
I stay logged in to LastPass all the time in Chrome, as I do to my Google account.
I have 2FA enabled on both my LastPass and Google accounts and have a strong password for both.
I have an Android phone which requires fingerprint or pattern login. Once logged in, Keep can be opened without further authentication while LastPass requires further fingerprint or password login. This is the only advantage I can see that LastPass has - Keep can be accessed with just the pattern whereas LastPass requires my finger or its password.
Is there a security reason to use LastPass Secure Notes rather than Google Keep?
P.S. I think that a pattern login is less secure than a password login. Please give me reasons other than this.