Depends on the change. Certainly most PRs don't need feedback before the PR is ready - the task is too obvious, and there's little to feed back on before there's any code.

For bigger changes, of course you need feedback on designs. But that could easily be in the form of draft PRs.

I definitely would push back on anything that required feedback before PRs. That's way too much process. Just going to slow you down for no benefit.