Most apps integrate with reminders in some way, but only import from there. I am also looking for a long time now. The only app that comes to mind is Obsidian with the „Remotely Save“ sync plugin. I use it for notes but you can use obsidian for todo lists.

I believe this to be true for nearly all products. It has to be super simple to test, because you need to assess if it fits your needs. The mental model for a priori assessment is not strong enough usually.