In 2017, the body responsible for standardizing web browser technologies, W3C, introduced Encrypted Media Extensions (EME)—thus bringing with it the end of competitive indie web browsers.

No longer is it possible to build your own web browser capable of consuming some of the most popular content on the web. Websites like Netflix, Hulu, HBO, and others require copyright content protection which is only accessible through browser vendors who have license agreements with large corporations.

DRM in software is usually a blackbox which controls the way you access content and makes it harder to copy and redistribute. It isn't always 100% effective, given that digital piracy still exists, but it prevents most folks from being able to save the movie they're watching and share it with a friend.

https://blog.samuelmaddock.com/posts/the-end-of-indie-web-browsers/