I will agree with you, I noticed Russia did it and in few days or weeks later, the Russian rubles increased in price. But I am still just confused, what I thought before is that a country like to protect its foreign reserves, if the people in a country are demanding more of the foreign reserve, the central bank will not have option than to decrease the price of the local currency so to protect the foreign reserve depletion, which means that would still result to inflation or devaluation of local currency. If foreign reserves are used by Ukrainians, this could result to the depletion of foreign reserves in Ukraine.
Central bank foreign reserves have nothing to do with people's personal savings or stash under the bed reserves.
The main issue for a central bank when trying to protect their currency is to stop UAH from being converted to either $ or
BTC, stopping people from converting $ into
BTC ads nothing to their national currency, it just changes the form, just like some country would change their reserves from $ to euros.
Your concerns would have been right if they would have allowed purchases of bitcoin with UAH till that limit,
but that's not the case.
I was later thinking Ukraine received donations in bitcoin, altcoins, US dollars, Euro, Pounds and other foreign currencies, probably could also be one of the reasons or the main reason that NBU restricted hryvnia to be used to buy cryptocurrencies because they have a lot of foreign reserve as a result of donation.
Receiving foreign currency strengthens the UAH, allowing UAH to be converted without limit to either $ or
BTC would have negated all the positive effects donations had.
Again don't think that personal wallets act like the CB central reserve.