The timeline view doesn't really give a fair view of an idea's duration on the timeline view due to it only support months or quarters.
For example in the monthly view, if a project has a start date in September and end date in October this appears on the timeline across both months where technically it could actually be shorter in duration than a project that starts and ends in September.
We'd like to be able to view the timeline view down to the week similar to how you can in native Jira.