Why are files available to view when starting up my windows PC even though Cryptomator is locked?

I have a windows 11 laptop and each time I start up my laptop and go into for example Excel I can see the past few spreadsheets on the list and when I click on one of them they simply open up even though I have not yet unlocked Crypotmator. It is only when I then unlock Cryptomator and then lock it again do these files now get hidden/locked. What is going on here?