I mentioned I am working on replacements for the usual local PC software stack ..."exactly"
You breezed right over that, obsessed over a single statement in a rush to justify your choices.
In my day to day experience the browser is not indispensable, quite the opposite. I barely use one. Native phone apps work better than web apps for "present reality" use-cases. I will stick to phone apps and run what I want on my PC.
I am waiting for a new build of a vision model backed GPU accelerated Vulkan-based desktop replacement to compile.
I can submit a prompt, get a point cloud/depth map displayed onscreen and then it crashes. Memory management needs improvement.
And I have achieved this in just a few weeks with a single 3090 and local models. But I guess being an EE who has developed software from hardware up for over 20 years and not a web SaaS code school grad, has provided the context to bring "fairy tales" to life.
Meanwhile Web Assembly has been right around the corner for over a decade; a fairy tale with little value in present reality.