Er - no
Use your mirrors - that's what they are for. Modern high intensity rear lights are too bright, making distinction between normal rear lights and brake lights difficult to see - especially in bad conditions when seeing brake lights as early as possible is paramount. When the vehicle following can see you - turn them off.
Have a bit of common sense.
Front fog lights are still only used by idiots though. Fact fact fact.![]()
But the car behind that, or another car joining the road or whatever, won't see you.
If I need the light on because visibility is such that they are needed then they will be on.