assign tasks via the comment box and inform person asigned to solve the task via email
Same functionality is available in google sheets/slides. By entering ***@email.com and adding a task the person will get a notification via email that there is task for him/her to resolve. Once resolved he/she can directly mark the comment as resolved and the initiator gets a notification that this is done
seems like the one with the most votes on this topic is here, please also vote for that one to consolidate and get enough momentum to get their attention to it:
A big feature gap in my opinion.