How does the magnetic pressure in a magnetar potentially affect the application of the TOV limit?

It acts outwardly, counteracting gravity and potentially allowing temporary stability above the standard limit

While the TOV limit defines the maximum stable mass for a non-magnetized neutron star, the presence of an extremely strong internal magnetic field in a magnetar introduces complexity. The intense magnetic pressure exerts an outward force. This outward force partially counteracts the inward pull of gravity. Because of this magnetic support, a magnetar might maintain stability at a total mass that would otherwise cause a non-magnetized star of the same internal composition to collapse. If this field later decays, the sudden removal of this outward pressure effectively lowers the star's structural support, potentially triggering a collapse even if the star's physical mass has not changed.