FC2Video

If you are using Microsoft 365 products, you can directly create an animated GIF from PowerPoint. Read the article to know more:
https://www.videoconverterfactory.com/tips/ppt-to-gif.html

Online PPT to GIF converter:
https://convertio.co/ppt-gif/

Desktop GIF maker (All-in-one software):
https://www.videoconverterfactory.com/hd-video-converter/