I'm not denying any of that, and said something similar in another comment. But Minecraft, Escape from Tarkov came into existence without dependence on a store or a platform. Same for Runescape, albeit in a different time. WASM+WebGPU will make an appearance of such things more possible in 2022+. It's just a technical capability. A web implementation (of an online game) could come in addition to the ones available on Steam and Android/Apple, etc.