I'm a new user of this beautiful OS and was wondering if it is possible to hide the Recent bookmark, I've been searching on Google but could only find how to disable it which I already knew. Any advice? Many thanks.
There is no way of doing this, as far as I can tell, without disabling "recent" globally (so that GLib.VFS.get_default.get_supported_uri_schemes () does not include "recent"). You could raise a wishlist issue requesting this ability be added to Files. You would need to make a clear argument as to why it should be done and get some support from other users to increase the likelihood it would be implemented.