Backoffice keeps changing its language

Dear Experts,
I have two languages EN and AR, After log in to backoffice(admin) area with EN language navigating any section changes to AR?

Please advice

In your General settings > Localization section, do you have "Automatically detect language" selected?

My understanding is that you can't have a different language selected for administration vs the public store.
https://www.nopcommerce.com/en/boards/topic/66117/suggestion-different-language-for-admin-area
If you select a language then it will remember that.  (via cookie I think?)