In the past we had calls about MDM, specific calls or offline events about MDM.
Also updates on Discourse like Mission-Driven Mozillians 2019 Update (of January).
I remember too that was the plan to get MDM more promoted also inside Mozilla but I didn’t see any stuff about in the TL;DR newsletter for it.
Right now to see if there are any new campaign we have the reps meetings notes again on Discourse so this is very good (Council Meeting Notes - 2019-09-03) after a lot of months, before I had to check on https://activate.mozilla.community/ or on Telegram for rumors.