According to Vitalik Buterin, the maximum withdrawal rate for Ethereum validators is 1/65536 of the validator set per epoch, which implies that if only the Ethereum Foundation were to withdraw, it would take approximately 2.6 days. However, with a significant portion of stakers, such as 20%, aiming to withdraw, the process could extend to 58 days, indicating potential liquidity challenges for traders considering staking withdrawals.