@zzt the source code is here, and as far as I can tell it actually doesn't: https://github.com/torvalds/uemacs
But ctags support could literally be implemented in a few hours at most. The fact that it hasn't been added just shows that he doesn't actually care about this. He's either so deep in LLM psychosis that he can no longer reason about software, or he's just trying to make up use cases to justify LLMs in bad faith. I'm honestly not sure which is worse, but I suspect it may be both.
github.com/torvalds/uemacs