From the linked patch notes:

  • Reduced polling rate while the Steam Frame Limiter is active to save additional power. This can save up to 6% on battery life when running at 30fps in a low-power game like HL2
    • @[email protected]
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      fedilink
      146 days ago

      This is even better, because they dont have to make a new one. Which would cause a mass exodus because every person that already have one will want to buy a new one.