Moving forward, Selenium plans to update implementations to use WebDriver BiDi instead of WebDriver Classic if BiDi is enabled.
It was decided at the Selenium Dev Summit that we would implement the navigation commands with BiDi in all the bindings as the minimum for Selenium 5. This will act as a proof of concept that a user can successfully use either BiDi or Classic depending on the capabilities that are set. We do not need to implement everything in BiDi spec before releasing Selenium 5, just have a working module as a pattern to work from.