storage location for cloud backup how-to configure

I found that the "backend" non ui stuff is:

http://duplicity.nongnu.org/

it handles the magic of cloud transport.

still can't find some easy config docs.

ok, at some point a window schedule backup window appeared.
likely after i did a reboot.
a dialog window appeared with:

"Grant Access" bold H2 font.
You first need to allow Deja Dup Back tool to access your Google account. (Which i kinda figured should be the process.)
button:
[Grant Access]
pops window to google, make the grant to deja to backup:

A window appears when it's done to close the localhost

http://127.0.0.1:43383/?code=4/crazy_chars&scope=https://www.googleapis.com/auth/drive.file
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Access Granted

Déjà Dup Backup Tool will now continue. You can close this page.
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This is like a bad late night infomercial.

BUT WAIT... there's more. ...

Require Password? <bold>
() Allow restoring without a password.
* Password-protect your backup
You will need your password to restore your files. You might want to write it down.

Encryption Password:
Confirm Password:

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How does one change any of this?
Where is the settings for the app configuration if later i wanted to add password?

I'm running 20.04.
Yeah it works!

https://www.howtoforge.com/tutorial/ubuntu-backup-deja-dup/

I did some screen caps for dummies like me.

i {think maybe}
The trick was i should have click start backup. It doesn't offer you to do all that in the workflow until the user actually starts the 1st backup process.