@cy7878 shared their strategy in the UCLA Class of 2028 thread.
IMO, the difficulty in UC application since the it went test blind is how to distinguish your (as in someone else) UW 4.0 from my UW 4.0.
Our approach since 2020 (basically since 8th grade) is to add 4.0 from community college. 10+ classes with a 4.0 GPA from college, and in S24’s case 15 so far. That adds a new layer to separate my UW 4.0 (HS + College) from your HS only UW 4.0. So far it is working out for S24 very well.