You can find your Steam ID from the profile tab of the Steam application, by looking at your profile's URL. Here's how to find it.

You can find your Google Classroom code on your course's class card on the desktop website or mobile app.

Press the Esc button to bring up the menu, and select the Settings option/cog wheel from the menu on the right. Next, click on the House icon, as shown in the image below: On the next screen that ...