Researchers recently filed EIP-8361, a "tapered issuance burn" that destroys a growing share of validator rewards as the staking ratio rises.

Ethereum developers have proposed a mechanism that would gradually burn validator issuance as more ETH is staked, reducing net rewards to zero

Researchers recently filed EIP-8361, a "tapered issuance burn" that destroys a growing share of validator rewards as the staking ratio rises.