Collisions in LEO can chuck debris into orbits which intersect higher orbits. If one of those collides with something in in said higher orbits, you have a problem.
It’s possible it could go to a higher orbit, but we don’t have mega constellations in those orbits. I don’t know enough to know how far something could get flung up either, but I suspect if you’re in a 5y orbit, you aren’t reaching a 50y orbit area, and probably not even a 10y orbit area.
Collisions in LEO can chuck debris into orbits which intersect higher orbits. If one of those collides with something in in said higher orbits, you have a problem.
It’s possible it could go to a higher orbit, but we don’t have mega constellations in those orbits. I don’t know enough to know how far something could get flung up either, but I suspect if you’re in a 5y orbit, you aren’t reaching a 50y orbit area, and probably not even a 10y orbit area.