This discussion is quite discouraging ; I have spent over 2.5 hours just trying to figure out how to get the latest release of Polylang (free version) to work in WordPress 6 with the FSE – the full editor can no longer be disabled, and I see no options to integrate the switcher on the site…
So this essentially makes Polylang free useless with any version of WordPress going forward? I hope this is just an interim situation or that there is a reasonable fix as everything else about the tool (even in the free version) is very appealing.