There is current news on the intent of the state legislature to have the governor’s office take responsibilities away from the State Board of Education, and the articles on the subject include a discussion of the 2021 Ohio Remediation Report. That report states that the percentage of students going to higher education and requiring remediation in mathematics and/or English is declining.
Most of that gain appears to have been achieved by changing definitions.
When I started teaching mathematics at the University of Akron in 1978, approximately 80% of the incoming students had not mastered Algebra I enough to pass a placement test into a college-level mathematics course.