optional stealth browser backend for the Playwright fetch path?

[feder-cr]

on the open-source path the docs have you configure Playwright yourself for js rendering, and the readme notes the managed tier adds stealth modes. for pages that fingerprint the headless browser, would you be open to an optional fetch backend that drives a patched Firefox with a realistic, consistent fingerprint? it's a normal Playwright wrapper (python, drop-in api), so it'd slot behind the existing headless/loader config without changing defaults. happy to put together a small example or a draft PR if there's interest, otherwise no worries.