That’s right. No .dmg file. No direct install. It’s Windows-only from the ground up.
If you have an older Intel-based Mac, you can use to partition your hard drive and install a full version of Windows. Can I run solidworks on MacOS? solidworks mac os x
If you bought a Mac in the last 3-4 years, you are using Apple Silicon. This changed the game for CAD software. That’s right