Maybe video input, which is throttled because it takes too much compute.

Microsoft wants as many private people as possible, and if a feature takes too much compute, less people can use it:

>1. Program Requirements. You need a valid Microsoft account and your devices must meet the minimum system requirements (https://account.microsoft.com/rewards/). The Program is open to users who reside in the markets listed in the FAQ. Individuals can have no more than one Program account, even if an individual has multiple email addresses, and households are limited to six accounts. The Program is solely for your personal and noncommercial use.

https://www.microsoft.com/en-us/servicesagreement/