How do I see previous passwords

I also have the current 7.9.3 on a current mac, and can't see previous passwords.
In the current 1password, the apps can only restore an archived item.

To see a previous password, you have to sign in to 1password.com & look at the login there.
On the linked page, the section 'on 1password.com' details that.

https://support.1password.com/item-history/#in-the-1password-apps

Here's how it worked for me early yesterday to look at previous passwords.

Go to 1password.com
On the top left of the main page is a menu button
At the bottom of the menu is the signin.

When signed in, vaults are on the bottom left of the page.
If needed, scroll down to see all the vaults individually.

Click on a vault to open it, or open all vaults
Click on the item (can be login, note, card, id)

Scroll down the item's page
Toward the bottom of the item's page will be buttons, such as
show web form details
show previous passwords
view sharing history
view item history
Click previous passwords & a list will appear
On each previous password, Click reveal to see it

Family accounts allow multiple admins on any vault.
Maybe start a new question about that gear button.

I'm on an individual account.