When viewing a Google Doc that has been embedded within a Multimedia Lesson, the ability to scroll through the document will be limited if you are accessing it from a mobile device. This is due to the limitation that mobile devices have when it comes to loading and navigating iframes.
See Configure a Google Doc to Allow Iframing for steps on how to embed a Google Doc within a Multimedia Lesson.
Include a Link to Your Google File in a Text Lesson
Include the shareable link to the Google content within a Text Lesson. This will allow students to click on the link and open up the file in a new browser window on their device. If the student has any Google Apps installed (Sheets, Docs, etc), they will be able to open the content within the Google app. It is important to note that this will bring them out of the Thinkific Course Player, and they will need to navigate back to the Course Player to continue the course.
Use a Presentation Lesson for Google Slides
If you are want to share a Google slide deck, you can do this within a Presentation Lesson. You will first need to download your Google Slides, and convert them into a PDF. Once they have been converted you will be able to add them to a Presentation Lesson. This will ensure the slides are easily accessible on both desktop and mobile, while still using the Thinkific Course Player.