I hope this is true. I don't know how to maintain a web browser, hopefully those that do are willing to do the work to keep it running.
But also… what people want to do on their devices evolves. Web developers want to be able to support that. So they rely on browser developers to constantly support new features. One can bemoan this state of the world as much as they’d like(*), but at a certain point it’s just sticking one’s head in the sand.
(*) I style myself mostly a native platforms developer, and I’d love it if the web wasn’t the de-facto cross-platform architecture of choice. But alas.