There is no one specific document that would have that information for all the UC campuses for Freshman admits.
UCI is probably the most transparent which lists the information you are seeking however, 2022 data is not yet available. Here is the link
and you can filter by major: https://datahub.oapir.uci.edu/Data-Hub/Undergraduate-Admissions-Dashboard.php
UCLA has 2021 data report for the College of Engineering: https://www.seasoasa.ucla.edu/wp-content/uploads/seasoasa/2021-UCEE-Report.pdf
UCB’s data can be filtered by College but not by Major: OPA – University of California Berkeley
UCSB’s Student Profile lists some information here: campus.profiles.2021.22.pdf - Google Drive
What major(s) are looking for in regards to acceptance rates?