has anyone running a Canoscan Lide 400 w/ ScanLJLite software package under Monterey?
Of course with the Big Sur driver/software package as Canon hasn't provided an update yet...
I would not bet on ever getting an update for anything after Catalina. Big Sur added the secure system volume, and guessing Canon would need to do some major changes to get their software to work in the new environment.
macOS includes enhanced protection for your Mac with cryptographic technology (macOS 11 or later) that prevents access to or execution of files that don’t have a valid cryptographic signature from Apple.