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.
And i would suggest to separate religion from practicality.
Many muslims do far worse stuff than gain interest on their money. And i know a lot of muslims who have no issue with interest.
Bro if some Muslims do it, then it is not valid(halal) for everyone else. If there is a law in their religion, it is depend who will follow it or not. Some people’s don’t care about their profits like as where are their profits coming from but some are very concern and they adhere to their religion very strictly. So don't judging from one side.