It's also funny to me as someone who's been building websites for 20+ years at this point, because the platform differences used to be much, much worse. Coincidentally, I just saw this article, which makes the case nicely: https://www.bram.us/2026/06/21/do-websites-need-to-function-...
Could be attributed to app developers going the extra mile, but I suspect it's the framework choice.
I also doubt it works well on Linux. The performance of webkitgtk is like running an emulator inside an emulator.