The 22% self-limit rule ensures at least four major staking entities would need to collude in order for the chain to reach finalization.

Superphiz, Lido Finance, Rocket Pool, StakeWise, Stader Labs, Diva Staking, Self-Limit Rule, Centralization, Finality, Proposal, Voting, ValidatorsRead More

You might also be interested in reading HIVE Digital mines 116 Bitcoins in July.