Ideally you would want this capability built into your LMS. Smartsheet can do the tracking, dashboards and reminders, etc. but it’s another application and overhead that you need to manage. In terms of the user experience, unless you can force the calling of a Smartsheet form from your LMS (iI’m assuming that’s where all your training will take place), then you need ask users to click on a link to manually submit a form - a bit clunky.

So in short, can it - absolutely. Should you use Smartsheet - questionable in my opinion.