We have a business use case to create a chart that shows each assignee in a project, how many issues they have been assigned, how many have been resolved, and what the average time to resolution is for each person. I'm able to use a built-in widget to report on assignees by created vs resolved, but I am struggling to report on the average time to resolution - I can do it across all issues, but not break it down by assignee.
I keep seeing community posts where the only way around this is with an add-on, but I cannot pay for an add-on at this time. Is there any other way to surface this data?