It’s to avoid trackers and/or paywalls, and also to preserve it just in case. But yes, to each their own.

When creating a task, you can choose a Start, End Date and a Timer.

You also have to select the Calendar where you want Tasks.org to save your task.

In Nextcloud is the same while creating tasks, but it’ll create a Calendar for every list of tasks (e.g Personal tasks, College tasks, etc)

I’m using Tasks.org with DAVx5 (android) and an external Nextcloud hosting.

You can set blocks of time, nested tasks and it adds them to the Nextcloud calendar. I think Tasks.org can sync with Google Tasks, but it has limitations.

My only step left is self-hosting Nextcloud.