Creative Cloud is a program delivery process... what specific program are you using?
Moved from Cloud forum to Photoshop forum.
Basically you will not see the checkerboard if the layer you try it on is indicated as a padlocked Background layer in the Layers panel.
You will only get the Fill dialog box.
You would need to click on the layer padlock to make it a Floating layer.
Then you can directly delete a selection by just using the Delete key.
Flatten the image when you are finished. White is the default background.