I think it depends on the individual school and teachers.
I went to a Montessori school K-8 and also have ADD. It made some things harder but because of the flexible nature of things the teachers could spend more time with me on planning and organizing and less time on that with the kids who didn’t need it. Looking back I think they also made sure to pair me with kids who had better executive function.
Once I graduated and went to a traditional high school I found the rigid structure made everything harder for me.
I went to a Montessori school K-8 and also have ADD. It made some things harder but because of the flexible nature of things the teachers could spend more time with me on planning and organizing and less time on that with the kids who didn’t need it. Looking back I think they also made sure to pair me with kids who had better executive function.
Once I graduated and went to a traditional high school I found the rigid structure made everything harder for me.