We have a similar approach here. MS and HS go M&W or T&TH. ES attend in person M-TH with Fri virtual for all.
There has been a fair amount of spread within the schools for students and staff. I'm not sure how it compares to the general population.
There is a lot of push back from parents to go in person full-time. The school board voted to go full time for MS and HS starting April 19 when they return from spring break. The argument is the teachers should be vaccinated by then. That part makes sense, but one SB member argued they can now keep the students six ft. apart. The schools are too crowded. This was one of the reasons for the modified schedule. Nothing has changed, the schools are not suddenly larger.