had a question regd no. of applicants

i am an Indian international who recently got into CALTECH RD, my brother is in grade 11 right now (going to grade 12) and will be applying next year. i saw some posts on CALTECH instagram account that said CALTECH had a 19% decrease in applicants due to standardized testing being reinstated.

as my brother is applying next year, i had a question on his behalf that will colleges like Harvard, Stanford, etc see similar rate of drops in the no. of applicants? we checked the CDS yesterday for the cycle of 2019-2020, where only 40,000 applicants applied to colleges like Harvard, stanford.

will there be similar no. of applicants from india in the next cycle as there were in the 2019-2020 cycle?

thanks!!