How to login into Instagram using Faceb…
https://www.gadgetsnow.com/how-to/how-to-login-into-instagram-using-facebook-login-credentials/articleshow/89731213.cms
Link your Facebook and Instagram accounts by opening the Instagram app, tapping the three-bar menu, tapping Settings, tapping Sharing to Other Apps, and connecting Instagram to your Facebook account. Go to the Instagram login window and select ‘Login with Facebook’. Enter your Facebook login credentials and tap ‘Connect’. If you need to find your Facebook account from Instagram, tap the three horizontal lines on your profile, tap ‘Discover People’, tap ‘Connect to Facebook’, and log in.
Link your Facebook and Instagram accounts by opening the Instagram app, tapping the three-bar menu, tapping Settings, tapping Sharing to Other Apps, and connecting Instagram to your Facebook account.
Go to the Instagram login window and select ‘Login with Facebook’.
Enter your Facebook login credentials and tap ‘Connect’.
If you need to find your Facebook account from Instagram, tap the three horizontal lines on your profile, tap ‘Discover People’, tap ‘Connect to Facebook’, and log in.
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