As a muslim I have to give a counterreply.
The idea of staking is in my opinion much better because the even if it is a lesser evil, it is a lesser evil which nullifies the greater evil and that is big banks.
So in order to clarify this, I believe that PoS will eventually give less fundings to big banks who do use the money for things like usury and even other non religious but immoral things like bribing, corruption and so forth. The more decentralised our funds get, the better for everyone and that even includes muslims.
Now thirdly, why is this a wrong thing to post? Because you are not a scholar, and why that matters is due to the fact that this issue is very new, so saying its haram or halal is actually haram because there is barely any Ijma (Consensus) among islamic scholar on crypto, because the issue is so modern.
Now lastly, here is however an article made by a mufti and some imams.
https://islamqa.org/hanafi/daruliftaa-birmingham/136838And they conclude that investing in bitcoin and profiting from it is halal, but that they should be very wary of the currency because at the time of the article, crypto was not yet a independently and legally accepted currency, and it still is not to some extent. The reason for that is because Islamic laws dictates that there needs to be inherent accepted value to a currency in order to prevent scams and such things, which is totally fair and actually what any reasonable mind would think.