Uploading GIF

I would like to show a GIF in a modal when introducing the product to a customer. The problem was: 1. Uploading GIFs manually - for a GIF of size 1.7MB a message said “File Too Big” 2. Drag And Drop an .mp4 video - dropped file type not supported 3. Public preview link with the format - https://www.canva.com/design/DAF2sN0TME0/HfB0rnSg1CHLSHIOJwWuqw/watch?utm_content=DAF2sN0TME0&utm_campaign=designshare&utm_medium=link&utm_source=editor - clicking Insert media with Source — stays like an empty video on 0:00 I have managed to embed it as a video. The problem is there are controls (play, pause etc.), it is not autoplayed and it is not looping. How can I upload or show a GIF? Thanks for understanding. All the best, Aleksandar