I also prefer just a txt file or pinned Keep note for todo lists, but I maintain about a dozen different lists, and not everything gets done. Occasionally I will do an audit and remove things.

Are you just in a scenario where you have absolute control over what you do and on what timeline?

If not:

Do you ever lose track of older items (i.e. forget about them for a long time because your eyeballs don't land on them)?

How do you decide when to remove something that isn't done?

Alternatively, if things never enter the list faster than they leave, how do you predict whether something will or will not violate that rule at entrance time?