Yes, you can link multiple Instagram accounts to your Facebook. All you need to do is follow the given instructions -
1. Open the Instagram app, tap the profile icon and then tap the three dots on the top right corner.
2. Next, select Settings and then Linked Accounts.
3. Select Facebook and enter your password.
Once linked, all of your posts will be shared on both platforms. This is useful if you have multiple accounts that you want to link together or if you want to use one account for personal use and another for business purposes.
For more read - https://onlinevibe.net/login-instagram-on-pc-mobile-browser/