Password for nextcloudfolder client desktop ubuntu 18.04

Hello support,

I have installed the nextcloud desktop client on ubuntu 18.04. It works perfect.

When I open Ubuntu I can read all the fils in the nextcloudfolder under home/nextcloud. Is there an easy way to secure the folder for example with a password? With cryfs, encfs, or ecryptfs-utils?

Or should I delete the desktop client and install the client new and place the nextcloudfolder in an encrypted folder? Will this function?