Web apps kind of already do that with most companies shipping constant UX redesigns, A/B tests, new features, etc.
For a typical user today’s software isn’t particularly deterministic. Auto updates mean your software is constantly changing under you.
The rate of change is so different it seems absurd to compare the two in that way.
The LLM example gives you a completely different UI on _every_ page load.
That’s very different from companies moving around buttons occasionally and rarely doing full redesigns
And most end users hate it.
I don't think that is what the original commenter was getting at. In your case, the company is actively choosing to make changes. Whether its for a good reason, or leads to a good outcome, is beside the point.
LLMs being inherently non-deterministic means using this technology as the foundation of your UI will mean your UI is also non-deterministic. The changes that stem from that are NOT from any active participation of the authors/providers.
This opens a can of worms where there will always be a potential for the LLM to spit out extremely undesirable changes without anyone knowing. Maybe your bank app one day doesn't let you access your money. This is a danger inherent and fundamental to LLMs.