I don’t understand the scenario you proposed or it’s relation to the simulation hypothesis.

However as for the latter part of your post anything which is external is irrelevant.

Basically it doesn’t matter if the universe is a simulation a hologram or a marble it has no actual impact on our reality since it’s ohtside of its scope.

If we are being tinkered with it does not detract from our reality in any way it doesn’t change anything since if we are in a simulation then an administrator who modified your code is on the same level as natural law, they are a part of the universe not our peers.