Hope you are doing well and sorry for the trouble. A described, you are unable to play the video embedded in PDF on android mobile device.
Acrobat Reader Mobile is a freeware app, you can annotate, fill, sign, and share PDFs using the free app. Upgrade to use the premium tools, including Edit PDF, Export PDF, Combine Files, and Organize Pages.
For more information please check out the help page: https://helpx.adobe.com/acrobat/mobile-app-faq.html
You may also look at the similar discussion https://community.adobe.com/t5/acrobat-reader-mobile/how-to-view-play-multimedia-video-playback-in-a...
The answer is no, support for multimedia playback in PDF is only supported in the Adobe Acrobat desktop products (Reader, Standard, Pro) and not in the iOS, Android, or mobile Acrobat readers.