You are not familiar with this market. The goal of a UI Path is to replicate what a human does and being able to get it to production without the help of any IT/Engineering teams.

Most GUIs are in fact not web pages, that's a relatively newer development in the Enterprise side. So while some of them may be a web page, the goal is to be able to touch everything a user is doing in the workflow which very likely includes local apps.

This iteration from Anthropic is still engineering focused but you can see the future of this kind of tooling bypassing engineering/it teams entirely.