My Mac is 14 years old, no longer updated and still it stumbles on. I stilL prefer it to my new Dell Windows PC.
As I understand it a Chromebook is a Google rework of Linux, as is Android. You should be able to run the software under WINE, a Linux Windows emulator. If you Mac limps on, PlayOnMac is a programme that uses wine Ona Mac to use many Windows programmes although not all will work. I don’t know about the iPad.