Wow. I never thought that I would see such a good and elaborate guide on TD, my respect to you bird👏
Since I’m very good at gifs (not true), maybe I can help you with this, yes, maybe you already know it yourself, but just in case I’ll tell you.
You can use sites like ezgif.com or giphy.com. Try to compress the gif and if it doesn’t work (and it 100% won’t work because it will turn out 6-5mb and you need 2mb or less) then try the option that I was advised '83
If you don’t understand how to do it, here you can change the size of the photo
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I think I said the most important details, if anything, here’s a full guide that can help you