This would be awesome support to alow 2019 and 2020 owners a license upgrade to 2021.

I resolved to get QB 2019 to work on a newly created Mac Volume. I had to add a Volume (not password protected), buy a bootable installer, as the M2 Macbook Air could not seem to create one, install OS Ventura, and then access the QB 2019 application on my other volume (with Sonoma) "Data" didn't copy the application to the new volume. Then I added my QB 2019 company file, and now I just have to boot to the other volume whenever I need to do invoicing. Hopefully, the next update of Sonoma fixes this. As QB 2019 requires rosetta, not sure if that is the issue or not. 2019 may never run on Sonoma or later, so I'll just keep the Ventura Volume which is a clean install and only there for QB 2019.