near enough, a player can move 0.14m in a single frame of footage, however in an offside decision, you may have a player moving in the opposite direction, maybe not as fast as they are just setting off so lets say 0.07m, so the total displacement between the two players os likely to be 20cm in a single frame, so if the TV/VAR people want to choose a frame to suit their narrative/paymasters, they don't have to look very far at 20cm/f, and then they draw lines (that are effectively about 10cm wide on the pitch surface) on the screen in an arbitrary way to 'prove' their point. If it wasn't for the motorbike racing also being on sky/BT/Eurpsprt I'd be binning it off.