Doesn't work with W11 24h2 - in the end my solution was deploy bing desktop app with intune and set that as the default - yes you get the annoying microsoft bing in bottom corner of all images but it doesn't have an annoying click bait so users are distracted from working.
@davidm71
which registry hack did you end up using, I ask as going through many at the moment and want to find best solution other than having to use intune mdm or some 3rd party lockdown software as the devices are going to be in their own environment no internet access and don't need any of...