I’m wondering what determines the order of items in the timeline when they are “all-day” items. I would have expected the all-day items to be grouped by type (calendar events and reminders). As in the screenshot, there is a rogue reminder (“Return the hub…”) in between my calendar events.
Also, vaguely related: is it possible to hide the calendar names in the events? For me, the colour-coding is sufficient to let me know what calendar an event belongs to (just like the reminders which do not show the list name for every instance).