I don't think you have ever read what Ethereum POS is, otherwise you wouldn't have responded this way. It's orders of magnitude more decentralized.

How does Ethereum's proof-of-stake work?

Unlike proof-of-work, validators don't need to use significant amounts of computational power because they're selected at random and aren't competing. They don't need to mine blocks; they just need to create blocks when chosen and validate proposed blocks when they're not. This validation is known as attesting. You can think of attesting as saying "this block looks good to me." Validators get rewards for proposing new blocks and for attesting to ones they've seen.

If you attest to malicious blocks, you lose your stake

Attestation

If a validator isn't chosen to propose a new shard block, they'll have to attest to another validator's proposal and confirm that everything looks as it should. It's the attestation that is recorded in the beacon chain rather than the transaction itself.

At least 128 validators are required to attest to each shard block – this is known as a "committee."

The committee has a time-frame in which to propose and validate a shard block. This is known as a "slot." Only one valid block is created per slot, and there are 32 slots in an "epoch." After each epoch, the committee is disbanded and reformed with different, random participants. This helps keep shards safe from committees of bad actors.
Crosslinks

Finality

In distributed networks, a transaction has "finality" when it's part of a block that can't change.

To do this in proof-of-stake, Casper, a finality protocol, gets validators to agree on the state of a block at certain checkpoints. So long as 2/3 of the validators agree, the block is finalised. Validators will lose their entire stake if they try and revert this later on via a 51% attack.

As Vlad Zamfir put it, this is like a miner participating in a 51% attack, causing their mining hardware to immediately burn down.

Validators also get ETH for validating(mining is removed and validators get the new ETH that comes into existence).

https://ethereum.org/en/developers/docs/consensus-mechanisms/pos/

In POS everyone gets the same amount of rewards because validators are chosen randomly for every block, unlike on Hive where the Top 20 get voted on by the rich and continually get richer. Witnesses below like the top 50 cannot break even on Hive, EVERY validator on Ethereum POS will and break even.