Enable ADB debugging is grayed out - This setting is managed by your administrator
This issue was documented in 2021 but with no solution. My Chromebook is managed by my company and I am the manager. But Google tries to find the managed option to unlock for this to work in the administration interface for more than 15 days without success. By the way there are thousands of options in the admin interface it could be a clever feature to number them. If you are in front of the same issue please add your comments to this post. I hope that Google support will succeed to solve the issue soon because I developed my first app for Android on my Chromebook with Android Studio and I was able to download it to my phone before these 15 days.