Hello Alec harvey,
I would click on the circular icon in the top right of google chrome see if there are any other profiles available.
If you previously saw an image in the corner, good news! all you will need to do is sign back into your Google account to restore your bookmarks.
Tap or click here to learn more about Google Chrome profile usage.
On a Mac, you can click on Go > Go to folder. Then paste the following to check for additional existing chrome profiles.
I believe Apple-Shift-B will open your bookmark bar if it is hidden.