The satellites have to have ability to do a commanded deorbit. Additionally, at the altitudes Starlink operates at, if there’s a problem with the commanded deor

The satellites have to have ability to do a commanded deorbit. Additionally, at the altitudes Starlink operates at, if there’s a problem with the commanded deorbit, the satellites will naturally deorbit in a reasonable time. EDIT:OneWeb operates at higher altitudes where if there's a failure, the satellite will stay there for hundreds of years, but to try to mitigate that a bit, they added a grappling fixture/fiducial to try to make it easier for a robotic deorbiting craft to capture it.