Staking in crypto is like interest in Fiat.
You lend (stake) your crypto and get reward (interest) for it.
I suggest all my Muslim brother to stay away from this new kind usury.
Bitcoin itself for some Muslims is considered haram because the transaction has no physical form and it is prohibited in religion. But for staking myself I have not received information whether it is prohibited or not in Islamic law because it provides benefits including usury or not. So in my opinion if it is for Muslims to doubt it is better not to follow it. it does not matter because it all depends on the individual react