While much of this stack involves complicated platforms that have numerous forms of list making options -which I utilise- sometime you just want to quickly jot down an idea or reminder for yourself and if you're not inside your platform of choice you can ... ok, i can (relatable?) end up following the dopamine to 19 other things and by the time i get to my to do list i've forgotten the idea or reminder that sent me there. SO, enter the bare bones task list!
Todoist is by far the most powerful of the two, and it offers many easy to implement 3rd party integration (notably with Obsidian!) Has a paid option, which of course I need to have if I'm going to use it, so I try not to!
Google Tasks is also a fine choice (it's hard to screw up a todo list, really) especially when paired with TaskBoard (Kanban!). Won't go wrong with it.
I chose Microsoft To Do over them both because it has the simplicity of Google Tasks, with the integrations of Todoist, and when you take a bit of time to configure it, it looks damn pretty.