Yes, warm pool work, but our goal is to replace them at all.

Warm pools are nice but at the end they also consume resources, And you need to always keep the pool warm, starting browsers to balance, etc...

With the upcoming changes we will keep Chromium startup and the VM will be ready in 50ms, defeating warm pools at all

Also some customers need special parameters and features, increasing warm pools complexity. The happy path will be fast but the edge case will be extremely slow , and we want to guarantee fast speeds to matter which features you need on the requested browser.