Hi Crafter81,
Thanks again for your response.
The differences between the devices which work with the fonts in Cricut Design Space and don't work with those fonts, is the operating system.
iPad uses iPadOS. To find which version, go to Settings > General > About.
Mac uses macOS, which the version can be found at the Apple Logo > About This Mac > Overview tab.
Also, as you know, your new Mac has the M1 chip, as opposed to an Intel processor. The Rosetta software can help apps be compatible with the M1 chip, if there is an app built for an Intel processor.
If you need to install Rosetta on your Mac
Mac computers with Apple silicon
You'll want to relay that information to Cricut, along with all of the troubleshooting you've done. They may not be aware of fonts working with one operating system, but not another, or with the Apple M1 chip.
We wish you the best!