Garbage software still makes lots of money. Sometimes more than good software, and certainly more than the best software. Just look at the windows vs Linux ecosystem for a simple task like screen recording with decent compression. Open source tools are superior, but can be harder to even find on windows due to the poorer signal/noise ratio from all the terrible for profit/enshittification software. Some graphics drivers have dashboards that do screen recording, but that is not a universal solution.

The most viable free options on windows seem to be sketchy cloud stuff designed to be inconvenient enough to upsell you. On Linux it's either built in already or trivial to install something that records locally and doesn't rug pull the user demanding money.