If an APK asks for access to your contacts or location, delete it immediately.
If you find a reputable fan project mimicking the 3.0.0 update, it typically includes: Super Mario Maker 2 Mobile 3.0.0 Download - Google
Swapping between styles like SMB1, SMB3, SMW, and NSMBU. How to Safely Find Mobile Alternatives If an APK asks for access to your
Search for YouTube "showcase" videos of the specific mobile version to see real gameplay before downloading. Super Mario Maker 2 Mobile 3.0.0 Download - Google
The 3.0.0 update was the "Final Major Update" for the official Switch version. It added the feature, which completely changed the game from a "level creator" to a "game creator." This is why mobile users specifically search for this version—they want the most complete toolset available to build their own Mario adventures.