It’s a good question ! tldr the idea is that treasury stETH will be used to support these budgets going forward.
The DAO recently approved the formation of a Treasury Management Committee with very limited scope. Their role is to propose and enact simple, automatable strategies. As always, DAO token holders have the ultimate say regardless of what the Committee decides and on-chain votes are anyway required to enact these strategies. The first strategy after staking ETH in Lido has been to deploy an on-chain swapper to convert stETH into DAI. The Committee’s ultimate aim is to disband itself, which it may do in the medium term provided the DAO is equipped with sufficient, automatable, strategies of limited scope.