It does depend massively on the car - on our Hyundai Kona (2019 original), I would hit the 292 miles of WLTP every time from Spring to Autumn, sometimes over 300 in good conditions. I'd never see less than 240 miles even in Winter at motorway speeds, and this was with a 64kWh battery. 4-4.5mi/kWh was the norm.
The IM5 and 6 do seem pretty inefficient, particularly given the slippery shape, though hopefully the single motor ones will be quite a chunk better.
Our Megane e-Tech struggles to get to 200 miles with a 60kWh battery, despite a laughable WLTP about the same as the Kona!