No, it's primary. 2 classes in each year group, so team work means things happen more efficiently. Plus the SLT focus on workload means that reusing previous plans is welcomed, not frowned on. If they want to, new teachers use planning the experienced teachers left. And the planning format is a very short document too.
Heavy marking pieces are encouraged to be spread out. Rather than do a big English write, a big history write, a big RE write, HW projects etc in the same week, you plan assignments efficiently. Marking 120 scripts across those 4 subjects in the same week means you're not fresh in front of your class. The marking policy is streamlined so yr6 still get the guidance and steps forward they need in depth, but in a teacher time friendly way.
My ex was not a teacher, but when the kids were little, he would always take on things I was due to do that day, such as nursery pick ups/teatime/bathtime etc if I buzzed him to say I was needing to stay at school later than planned. His job meant he could do that, but I appreciate not everyone can. He preferred having me to himself in the evenings rather than me having to work, so it was something be saw the value in doing.
Different schools, and type of school, make it easier/harder for their staff to have a decent work/life balance. I only will ever apply for a job where I know I can continue leaving work at work.