Can iMovie Projects be stored in iCloud?

I have enabled iCloud for iMovie, but they don't show up in the iMovie Media of my other MacBook.

Is it possible to access iMovie Projects with iCloud?

iMovie is enabled:

Can't see iMovie in iCloud folder:

Neither in the web:

Choose File > Open Library > New.

In the Save dialog that appears, type a name for the new library, and navigate to the location where you want to save it.

The default location is the Movies folder in your home folder.

Click Save.

A new library is created in the location you chose, and a new, empty event with today’s date is created.

https://help.apple.com/imovie/mac/10.1/#/mov3fa25bae7

I don't have iMovie, so you need to check if iCloud is allowed there. If not, you need to copy paste items from ~/Movies to iCloud.

As for iCloud backup that you mention, it could be system preferences etc that are backed up, not the Library itself.