If you see sites offering a "Super Mario Maker 2 Mobile 3.0.0 Download," these are typically , unofficial ports , or potentially unsafe files, as Nintendo has not released this game for iOS or Android. Understanding the 3.0.0 Update

and do not have an official mobile release. The "v3.0.0" update mentioned in your query refers to the final major content update released by Nintendo for the console version in April 2020. Official vs. Unofficial Software Official Version

If you're looking for Mario-like games on mobile, here are some alternatives:

Introduced the SMB2 Mushroom (transforming Mario into his Super Mario Bros. 2 form), the Frog Suit, the Power Balloon, the Super Acorn, and the Boomerang Flower.

Websites and ads promising a mobile port are often used to distribute: