[2022] Eivor and environment not getting wet when it's raining

When you dive in a water mirror, you get rightly wet, but why not the same if it rains? is rain dry? why the terrain doesn't get muddy when it rains and if you step into it you leave the footprints? this ruins the immerison of the rainy weather.
Also have to see yet a proper storm with thunders and strong wind, but maybe i was just unlucky.
Ac syndicate wet effect of the floor was pretty.Go to 5.03 minute

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Here you can see the clothes were affectewd by the rain in AcSyndicate:
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Here a Thunderstorm from Ac Odissey, and also the wet effect on the armor
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Those games use Anvil Next 2.0 if i'm right, so why we got backwards?