.org used to be for non profits but now the restriction no longer applies

.com was for commercial use

Originally, each had a unique purpose:

.com: Commercial (for-profit) websites

.net: Network-related domains

.org: Non-profit organizations

source https://www.howtogeek.com/126670/the-difference-between-.com-.net-.org-and-why-were-about-to-see-many-more-top-level-domains/