There is a special widget on the PC web-based version on the homepage to allow you to set priority tasks. Not the high-low-medium ones in the regular priority field, but assigned specifically to you. (You set it on the task line at the bottom of the list of regular priorities... There is a list of names. Or by dragging into the widget on the homepage.).

I am not finding this in the mobile app. If it is there, please let me know where. If it is not... it is obviously not super-useful to have it on the web version but not the mobile version. You may as well not have it at all and stick to dates. But I like that feature.

I haven't looked yet to see if there is a way to filter on the web app by that (I will look shortly but didn't want to lose my screen), but it should be a simple and easy widget to get to like it is on the web version. Not a complicated filter.