What exactly did they do here? X linked video is broken for me, and the article just says the performance is bad. My pixel 6 just got Android 14. Possibly just OS/new hardware related?
When people using a Pixel 8 or Pixel 8 Pro tried to install benchmark apps from the Play Store, Google blocked the installation and falsely claimed "This app won't work for your device".
IMO that's not evidence of anything other than a bug with package manifests and the current Playstore version. I have to side load apps all the time on my kids tablets because of API incompatibilities that don't ultimately matter, and it isn't Google out to get my kids.
According to the 3DMark playstore page, the last update was Sept 21, 2023. Version 2.3.4869. Android 14 came out October 4th, making any incompatibility likely a temporary problem.
Unless there's a quote from 3DMark explaining how everything is dandy in their end, I'm not buying what you are selling.