This tutorial will guide you how to play MP4 videos hosted on Google Drive in WordPress with WonderPlugin Gallery.
Step 1 - Get the Google Drive direct link of the video
Upload your video files to Google Drive, then follow this tutorial to get its shareable link and convert it to the direct link: https://www.wonderplugin.com/online-tools/google-drive-direct-link-generator/.
Step 2 - Add the Google Drive direct link to WonderPlugin Gallery
In WonderPlugin Gallery, step 1, click the button "Add Video" and enter the Google Drive direct link to the "MP4 video URL" input box.