Unity: How can I run Unity builds created in High Sierra & Verify they run on Mojave without a Mojave computer? I have Unity 2020.3.0f1 Mac apps that were created on end-of-life High Sierra computers. I recently purchased a Mac Mini M1 computer. The apps run on both computers. I have to execute a terminal command on them to get them to open on the M1 computer.
Apple changed the App Store Upload process so that now we have to notarize that new apps will run on Mojave. I don't have a computer that runs Mojave. From my understanding you can't test Unity builds using the Apple Simulators. Is there another option to test my apps to see if they will run on Mojave?
Since it is tagged with Catalina too, GitHub has machines where a build can be tested.
Just write some automated tests that run using the binary (which you might want to upload to git-lfs) and use GitHub actions to run them remotely.

https://docs.github.com/en/actions
https://docs.github.com/en/github/managing-large-files

There are plenty of workflow files available if you search properly. https://github.com/search/advanced
There might be other such CI/CD delivery options too with other macOS versions.

https://en.wikipedia.org/wiki/Comparison_of_continuous_integration_software