See the Inline Todo Plugin, which supports the confluence format for TODOs with +tags, @assignee and //date, for example: - [ ] @TODO +joplin //2022-04-04 Release the TODO plugin!.
It also supports another format: [TODO](2022-04-04) Release the TODO plugin! if you find it nicer.
Also see the Bundle Plugin which supports listing all these tasks in a dedicated panel, and enables filtering them by due date, assignee and tags (works in the desktop app).