Sounds like a great essay topic
That’s an activity as you list.
People who work at grocery stores, play sports, are in the band, walk dogs at the shelter, work in an old age home, take nature pictures, volunteer at church and more and major in anything and everything.
You needn’t have ECs align to a major. It’s in most cases irrelevant.
You do need at some, not all colleges, things you’ve done outside of class that show you as a person, not just a student.