We did IVA last year (for our 2nd grader). It was...not good. The teachers stuck to that awful Florida Virtual curriculum until about mid-winter, then finally switched over to the California common care workbooks (Journeys, GoMath, etc). They didn't really hit their stride until the Spring.
I felt too guilty to keep my daughter home another year, so reluctantly, even with Delta surging, we opted for in-person. However, with Irvine schools at nearly full capacity, they aren't even attempting any distancing. I'm very worried. My daughter said the kids are squeezed in tight at the lunch tables. They are outside but of course masks are off. I am hoping for the best, but this is definitely an experiment. We will what happens.