A webbing hip belt is just a simple strap with a buckle and no padding, so it won't win any awards for heavy hauling. But it's not meant to. It's designed for small resort packs (usually under 20L) where you're carrying just the basics—water, a snack, maybe an extra layer. For those light loads, a padded belt is overkill.
The big upside is comfort on chairlifts. A minimal webbing strap sits flat and won't dig into your sides or fight with the chair bar, which is why resort riders often prefer it. It also saves weight and keeps the pack simple.
Where it falls short is load transfer. If you're touring with a heavier pack—especially over 25L with avalanche gear and extra supplies—a webbing belt won't move weight off your shoulders and onto your hips. That leads to fatigue on long ascents. Stick with a padded option for touring, but for light resort days, webbing is a great call.