If you are looking to post an MP4 video, here is how to do it across various platforms: Social Media & Content Platforms

: Offers unlimited file size for uploads, though free plans have a weekly storage cap. Websites & Presentations

: To post an MP4, ensure your video is under 1080p width with a frame rate of 30 fps. You can upload directly via the mobile app or use the "Toggle device toolbar" in a desktop browser to simulate the mobile interface.