Working at a boarding school, I see that the school is set up to replicate a family as much as possible (can never replace-obviously). No screens (except on Sundays), endless fresh air, nature, healthy food and exercise, which are aspects I love.
Each child is known to all of the adults and a team of matrons (pastoral) and a school nurse constantly liaise with academic staff and vice versa. Behaviour challenges tend to be minimal, so more content is covered in class, which is satisfying as a teacher. SEND levels are similar to state, but there are more resources to cater to those pupils.
Teaching staff are 50:50 state educated and ex independent boarder types who have wealthy families, so there are varied underlying political views on the staff. Everyone is similarly dedicated to state school staff- it really is an exhausting “above and beyond” job whenever children are involved.
Boarding is a culture, and whether we necessarily would want it for our own children is irrelevant. There are families that do things this way and there are positives and pitfalls as there are with all choices in how we educate our children: home ed, independent, state, boarding, international etc