How to see if encryption module is working?

I activated the encryption plugin and logged in and out on my devices, but when I take a look at my file folder on my host I can see all files I uploaded pretty clear without encryption. I know that the encryption plugin only works after activation, but even the files I uploaded after activation does not seem to be encrypted. I am using the Nextcloud windows desktop synchronization tool. Is it compatible with the encryption module?

I am an idiot. I forgot to activate it on the admin page. Sorry for the inconvenience.