For those also wanting this functionality in Adobe Analytics I've added to the ideas board at https://experienceleaguecommunities.adobe.com/t5/adobe-analytics-ideas/rolling-daily-monthly-yearly-active-user-metrics-user-stickiness/idc-p/385999 Please like and up-vote.

I'm also interested in what the impact of ITP 2.2 is. I beleive it got released on the 13th May as part of the ios 12.3