I've noticed this week that simply choosing "Copy Link", not "Share" on a folder is now giving the folder a shared icon.
These folders have never been shared in the traditional way, so there are no options to "Unshare" them.
I have generated/copied links for other folders which were added last month, and they show the plain folder icon.
However, if I simply choose "Copy Link" again on those same folders now, they also change to a shared icon.
These folders are not synched with my PC, and only exist online.
I saw another thread about something similar, but their issue was due to the folder having been copied from a Team folder.
I am not using any features like that.
Did something change?