Hmmm, I think I know what you mean. I was used to viewing the "Quick Access" list in the left hand panel of Explorer in Windows 10. When I updated to 11, this Quick Access list disappeared, and said panel looked like this:
Obviously, no Quick Access list. What I realized sometime after was that I had to disable the "Show all folders" option in the context menu for the left hand panel in Explorer (option unchecked in screenshot below):
Once you disable the "Show all folders" option, you will see your Quick Access list back on top, below Home as in the screenshot above.