To be clear, I agree with you that it's fucking ridiculous. Avoiding taking a "loss" of 4 bloody cents on your margin to make your product unable to decode via hardware one of the most popular codecs on the planet is classic value engineering horseshit, and is exactly what I expect from a penny pinching corporation. I'm just saying let's be accurate in calling them out: Dell has made your Teams and other apps experience demonstrably much worse to retain 0.08% of their profit margin.
Each new codec to support is adding a lot of complexity to the stack (negotiation issues, SFU implementation, quality tuning, dealing with non conformant implementations...), so it's never quite as easy as toggling a switch to enable them.