Comparing 'View changes' option presence for actions on User talk pages:
Production: 'View changes' is present for '[user] left a message on your talk page' - that essentially means: adding a topic on a user talk page.
Betalabs - with 'Flow on user talk' enabled,
- 'View changes' is not present in Echo notifications nor on Notification page
- changes are tracked only by topics, not by replies which is confusing.
See also (especially the first one) T110525: Have a global diff when some people add answers to a Topic (some version of this at topic-level, board-level, or both would be required) and T96895: Flow permalinks point to specific topic or post, not snapshot in time of board or topic.


