If it was truly opt-in, it could be an extension. They should not be bundling this with the browser, bloating it more in the process.
The extension API doesn’t have enough access for this.
You technically can run your own local AI, but they hook up to the big data-hungry ones out of the box.
While it is opt-in and disabled by default, this is the real problem.
Not even, it will suffocate on its own by having the capitalists keeping their changes from each other. Like a bucket of crabs; where if one crab is about to get free the others grab onto it and pull it down.
Kernels really benefit from being “forced” to share the code changes as the GPL license, they are too tied to HW, and HW needs a lot of capital when iterating.