Alternatively, look at the top title bar of the application window. It should say Fusion 360 Education License .
After signing in, Fusion 360 should launch. To confirm you have the Education License (and not a Trial): how to get fusion 360 education license
You will likely need a transcript, a student ID card with an expiration date, or a letter from the institution on official letterhead. Alternatively, look at the top title bar of