At least from what I noticed - Junie from Jetbrains was the first to use a very high quality to do list, and it quickly became my favorite
I haven't used it since it became paid, but back then Junie was slow and thoughtful, while Cursor was constantly re-writing files that worked fine, and Claude was somewhere in the middle
Cursor added a UI for todo list and encourages it's agent to use it (its great ux, but you can't really see a file of it)
kiro from amazon does both tasks (in tasks.md) and specs.
Too many tools soon, choose what works for you