Thread:KevinVolkov/@comment-44723838-20191226115941/@comment-38078079-20191226120748

On desktop, there are three icons on the top-right banner.

Click on the first (just after 'search', but before the bell icon).

This will bring up a sub-menu; from here click "view profile".

On your profile page, there wil be your avatar on the far left. Hover over it with your mouse, and then click "edit avatar". This will bring up a box where you can click "upload avatar".

You simply upload as instructed, and you're all set.