After Coinbase switched about half of its validators to Nethermind, the market share of Geth (the main Ethereum execution client) dropped from a high of 84% at the end of January to 66%. Lachlan Feeney, founder and CEO of Ethereum infrastructure company Labrys, said that the method used for obtaining data for Client Diversity has flaws, and Geth needs to move a significant amount at the 66% threshold to consider any errors before we can be sure that a supermajority error is impossible. Besu has a 10% share of Ethereum validators, and Erigon, supported by Coinbase, has a 2% share, bringing the total share of a minority of clients to around 34%.