Open your device Settings
Tap Google
Tap Password Manager
Find Instagram in the saved passwords list
Tap Instagram
Tap Delete
Confirm the deletion
Open the Google app or go to passwords.google.com
Sign in to the same Google account if needed
Open Password Manager
Find Instagram
Delete the saved login entry
On Android, open Chrome
Tap the three dots
Tap Settings
Tap Password Manager
Find Instagram
Delete the saved password
If Instagram appears in Smart Lock suggestions, clear Chrome’s saved passwords and autofill data
If needed, turn off Offer to save passwords in Google Password Manager
If needed, turn off Auto sign-in in Google Password Manager