The videos are stored in Google Drive. You can watch them within the course. If you choose to use another browser, you may have to log into your google account to view the videos. When starting a video you will need to click it twice.
The courses will work on all devices, but your best experience will be on a larger screen. So, if you are choosing between a phone or a monitor to view the content on- go with the monitor!
***Be sure you are comfortable with the terms of service before installing any extensions or downloads! ***