I want to know that `useEffectState` and `useBatcher` are used to simulate batch updates, for versions before react18

Hello, I am reading the source code. I found that `channelUpdate ` and `unstable_batchedUpdates `are used in the code. So I guess it is to be compatible with the previous version of react18, and manually implemented a method of updating the status in batches, is this the case?