Scroll down the post options until you see "Avatar".
Many forums have specific size limits for avatars (often around 150x150), so your 1500x896 image is better suited as a discussion post image or banner rather than a profile icon. New Facebook Avatar Post Option
If you want to use a personalized avatar directly in a Facebook post: 1500x896 Avatar hГЎttГ©rkГ©p>
Ensure your post is civil and avoids "hate or witch-hunting".
Type your message over the avatar graphic and tap Post . Designing a Custom Post (1500x896) Scroll down the post options until you see "Avatar"
If you are posting to a specific "Avatar" (movie or show) fan community like r/Avatar on Reddit :
If you are on a mobile device, use Galaxy Avatar in Settings to create a character from a photo and export it to use in your custom-sized post. Posting Tips for Communities Type your message over the avatar graphic and tap Post
To create a post using a custom or an avatar-themed visual, you can use built-in social media tools or design platforms to layer your text and graphics. Facebook Avatar Post