How many satellites currently orbit the earth? Aren’t they planning to launch a thousand or two? That’s a pretty substantial amount of things!
Either way, a few thousand things spread out over the surface area of the earth is practically nothing.
and the surface of a sphere at the altitude they're orbiting at is even larger. and the satellites are all spread across a variety of altitudes, relative to their size.
it's up in geosynchronous where things are carefully planned, and the spacecraft can adjust their orbits, and do lots of long term station-keeping.