Dabbling with ungoogled chromium*, and reading about this extension I decided to give it a shot. Its not in the chrome store so you need to load it manually. I went to DDG and it immediatedly picked up 8 calls to Microsoft. Pretty interesting, though I haven’t looked into what it actually does or if it collects its own data, etc.

Hi there! This page is locked by Big Tech Detective because it loaded a resource from Microsoft This could have been anything from a font to an ad tracking script. Note that this does not block any of the resources from loading or prevent any of their trackers from collecting your data Requests Within Page Source # of Requests % Total Microsoft 8 100%

https://bigtechdetective.net/#download-instructions

*Don’t use google backed apps without adult supervision.