This article covers the two different methods for posting GIFs. One for X (Twitter), LinkedIn and Bluesky, and the other for Facebook.
X, LinkedIn and Bluesky
To post a GIF, you will either need to have a .gif file or the link to the GIF, usually a URL ending in .gif, for example:
https://www.gifwebsite/not_a_real_link/Test.gif
When composing your post in Orlo, select the "Upload Image/GIF" option.
If you have the .gif file, add it to the post as you would a normal image file.
If you have the GIF URL, add it using the source "Link (URL)" option.

Your post will look like this on X, LinkedIn or Bluesky (with the GIF auto-playing):

Facebook have recently removed native support for external GIF's to auto-play in a page feed.
As a workaround for this, we allow you to attach .gif files as videos to Facebook posts.
Whilst this will go up in the format as a video, it is currently the only way to have a GIF be playable within a page feed, as opposed to the current functionality that converts it to a link to the GIF.
File size restrictions for each platform
Facebook - 25MB
LinkedIn - 25MB
X - 15MB
Bluesky - 15MB