If you’re in a country that typically drives on the left, and you’re driving in the far right lane on a three or more lane road, you’re still doing it wrong. That lane is for merging and exiting. The far left is for passing and the center lanes are for cruising. There might also be turn only lanes, which unless you’re turning can be safely ignored, because the only valid reason to be in a turn lane is if you’re turning.
If you’re in a country that typically drives on the left, and you’re driving in the far right lane on a three or more lane road, you’re still doing it wrong. That lane is for merging and exiting. The far left is for passing and the center lanes are for cruising. There might also be turn only lanes, which unless you’re turning can be safely ignored, because the only valid reason to be in a turn lane is if you’re turning.