To change the language settings on Facebook and Instagram, follow these steps:
On Facebook:
Log in to your Facebook account.
Click on the down arrow icon at the top right corner of the screen.
Select "Settings & Privacy" and then click on "Settings."
On the left side of the screen, click on "Language and Region."
Find the "Language" section and click on "Edit" button.
Choose the language that you want to use from the drop-down list.
Click on the "Save Changes" button.
Facebook will then reload and display the site in the language you selected.
On Instagram:
Log in to your Instagram account.
Go to your profile by clicking on the "Profile" button at the bottom right corner of the screen.
Click on the three horizontal lines at the top right corner of the screen.
Select "Settings" at the bottom of the menu.
Scroll down and click on "Language."
Select the language you want to use from the list.
Instagram will then reload and display the app in the language you selected.
Note that changing the language setting on Facebook and Instagram only affects your account and the interface that you see. It does not translate the content posted by other users, so you may still see posts in other languages on your News Feed or Instagram feed.