I was reading https://symfony.com/doc/current/components/runtime.html for the first time and I found it odd it mentions $kernel->handle(Request::createFromGlobals())->send() when it also has array $request With keys query, body, files and session

Maybe a httpfoundation_request argument which resolves to an array which can be passed with the splat operator directly to Request::create would be beneficial so the runner could contain $kernel->handle(Request::create(... $request)) instead, decoupling the runner from globals?