One of the nice features of Visual Studio Code is the Timeline view. It's a lot more than a view of your Git commits as it brings you a unified view for visualizing any kind of time series events(of course Git commits, but also file saves, test runs,...) for a file.
The Timeline view is enabled by default and can be found at the bottom of the File Explorer:
When you expand it, you see all the changes for the selected file:
And if you click on a specific line in the Timeline view you get a diff of the changes:
Nice! This allows you to see what has changed without needing your Git commits as the only source.