Please understand that the virtual file system is still at an early experimental phase on Linux, as noted here: [https://docs.nextcloud.com/desktop/latest/architecture.html#virtual-files].
READ ON TO ENABLE AT YOUR OWN RISK
Follow these steps:
nextcloud-desktop-vfs-plugin
.nextcloud.cfg
file in ~/.config/Nextcloud/
in a text editor.[General]
section, add the line: showExperimentalOptions=true
.