Hi S,
This is the Activity Feeds Help Page that describes the various available activity feeds. Most of the feeds are accessible via the tabs in the Family Activity Feed option in your My WikiTree drop-down menu. By default, that option shows activity for your Watchlist (profiles for which you are a Profile Manager or on the Trusted List), but you can select any tab, and also use the filter links below the tab list for more refinement (for example, hiding your own contributions). The Ancestors tab there can provide you with activity on profiles of your direct-line ancestors.
Since I'm a member of the France Project, I have the France tag included in my profile tags, which is beneficial to me for following France tag activity in the G2G forum. Unfortunately, any France surname activity gets included in activity feeds that include my profile tags. Since France surname activity isn't of interest to me, I use several other activity feed options to monitor activity pertinent to my interests.