If you go to Google.com, you should see your profile picture in two (2) locations. The smaller one in the upper-right corner indicates are signed in to the Chrome browser. The slightly larger one underneath indicates you are signed in to your Google Workspace apps (Gmail, Drive, Docs, etc.).
Add bookmarks to quickly access commonly used websites and resources.
Tab Groups allow you to categorize a group of tabs. In addition, users can save/hide Tab Groups and open them when needed. Create a Tab Group for a specific subject, class period, or topic.
By default, Chrome will save each file you download to your computer's Downloads folder. If you prefer, you can change the setting so it will ask for the save location before each download.
Use the official Google Chrome Help Center for additional support.