I’m speaking from a consumer point of view- not as someone who has access to professional, high-end equipment, or has extreme technical knowledge. It is next to impossible to get rid of grain, as far as I know (and from my POV), but overexposing just a stop or two gives you more latitude because you can always subtract from brightness, saturation, gamma, tint, etc. because those options are pretty flexible on most editing packages installed on basic to moderate hardware setups.
As always, I am open to correction or alternate perspectives..