OneDrive wants tu use my confidential information stored in "adalcache" in my keychain.

Dave,

Thanks for the additional information regarding your Keychain issue. Please follow the steps listed in this support article, as they can often resolve your issue:

If your Mac keeps asking for your keychain password

Your keychain may be locked automatically if your computer has been inactive for a period of time or your user password and keychain password are out of sync.You can set a length of time that Keychain Access waits before automatically requiring you to enter your password again.

1. In the Keychain Access app  on your Mac, click “login” in the Keychains list.

2. Choose Edit > Change Settings for Keychain “login.”

3. Select the “Lock after” checkbox, then enter a number of minutes.

4. If you want to require a password each time the computer goes to sleep, select the “Lock when sleeping” checkbox.

5. Click Save.

This info is located in this support article: If your Mac keeps asking for your keychain password - Apple Support

All the best!

Hi there HelpDave100,

Thank you for posting to Apple Support Communities.

We understand you're having trouble logging in to Keychain Access on your Mac.

"Your keychain may be locked automatically if your computer has been inactive for a period of time or your user password and keychain password are out of sync.You can set a length of time that Keychain Access waits before automatically requiring you to enter your password again.

1. In the Keychain Access app  on your Mac, click “login” in the Keychains list.
2. Choose Edit > Change Settings for Keychain “login.”
3. Select the “Lock after” checkbox, then enter a number of minutes.
4. If you want to require a password each time the computer goes to sleep, select the “Lock when sleeping” checkbox.
5. Click Save."

This is taken from the Keychain Access User Guide: Welcome to Keychain Access on Mac - Apple Support

In regards to the third-party app, we recommend consulting the developer's website:

OneDrive help & learning

Microsoft Support - Contact us

Microsoft Support Community

We hope that helps.

Take care.