Aluminium rigid fork for winter
Presumably you are looking for a cheap bike to ride in harsh winter conditions. The advertised price of 35,960₽ is about US $615 (at the time the question was asked) which would be considered a quite inexpensive bike here.

Your choice or tires is going to make a much bigger difference than a carbon fiber vs aluminum fork. An aluminium fork will be fine, but look for a bike with clearance for bigger tires.