I’d been of the mindset that seeing my calendar items within my task manager was a must have but now I’ve switched over to Todoist and this isn’t an option for my iCloud I’ve come to the conclusion it actually clutters things up.
Having a division of these two actually helps with overload to me. I use the Apple Calendar app widget to remind me what I have on but at the moment concentrating just on my task manager helps me get things done without worrying about the structure of the day.
I just work through my list and get to the items when I get to them.