The macOS Catalina 10.15.1 update includes updated and additional emoji, support for AirPods Pro, HomeKit Secure Video, HomeKit enabled routers, and new Siri privacy settings, as well as bug fixes and improvements. For scanning, you may be able to use Brother iPrint&Scan.
I have a MAC G5 and would like it to talk to my sewing machine. Some browsers such as Chrome will ask you every time you open Design Space if you want to allow Flash to run.