Some hard stats on CBP traveler screening from
https://www.cbp.gov/travel/cbp-search-authority/border-search-electronic-devices:
Of the 420 million travelers CBP processed at ports of entry in FY 2024, 12,660,784 (3%) travelers were referred for a secondary inspection.
A border search of electronics is not a required action during a secondary inspection. In fact, CBP only conducted border searches of the electronic devices of 47,047 travelers in FY 2024, representing approximately 0.3% of secondary inspections and less than 0.01% of all arriving international travelers encountered at ports of entry.
Of the 47,047 border searches of electronic devices encountered at port of entry, 42,725 (90%) were basic searches in which the devices were not connected to external equipment to review, copy and/or analyze its contents.
Given that - I for one have zero concerns crossing US borders.