I would love it if this report supported up to all-time date ranges: https://developer.playfab.com/en-us/r/t//analytics/trends
The limit is currently 26 weeks' worth of data. However, since it shows "last period" overlays in the plots, that indicates the data for [at least] 52 weeks' worth of data is certainly stored, so simply allowing me to select a longer overall date range should be a relatively low-effort improvement.
My hope is to see overall lifetime high-level KPIs, as that helps with context. Besides, I think we all love to see the complete picture of what PlayFab really enables for game devs - a complete platform that we can operate our games with over many years :)