Alt + Tab displays the Edge tabs along with open windows by default.
To see only the open windows, follow these steps:
Open the Settings app by pressing Windows + I.
Click on Multitasking on the left sidebar.
You can find a drop-down list in the Alt + Tab section.
Open it and you will see these options:
- Open windows and all tabs in Edge
- Open windows and 5 most recent tabs in Edge
- Open windows and 3 most recent tabs in Edge
- Open windows only
Select the latter.