Can I safely remove a folder from the user library of my Mac?
I'm cleaning up old apps to clear space in preparation to migrate from Mojavi to Monterey and came accross a large folder (526 megs) in the user library of my system: Macintosh HD>Users>Greg>Library>Application Support>Arcode
As this folder is in the Application Support folder of my user (all the other folders here are apps that are currently on my machine, or have been in the past) I suspect this is leftover from an old program that I've since deleted – so old that I don't remember. When removing programs, I usually use an application like CleanMyMacX, which removes the app and its most of its remnants, but not always everything.
I've searched my Mac for any reference to Arcode with no luck. I've also tried to track Arcode on the WWW, and again turned up bupkis.
My question is this: can I safely remove this folder? It's over half a gig, and I'd like to recover that space if it's not contributing anything. I know messing in the system can be dangerous so I thought I'd ask those hopefully wiser than I before making a mess...
(And to be clear, this folder is in my user library, NOT in the Macintosh system Library.)
Thanks in advance.
[Re-Titled by Moderator]
iMac 27″