The timing is confusing. I had started a similar thread last month and one of the mom’s mentioned that usually you apply to the major during Fall semester of sophomore year.
I think if you find your major and click on the 4-year plan document for it then it will make more sense.
The admission to major is competitive but seems much more fair than some other colleges. U of Washington for example admits 1000 freshmen for CS. After a couple years you apply to the program and they have space for only 300. No thanks!