flow-talk-page-beta-feature-description is used on the Beta tab on Special:Preferences.
It says :
Enables a new structured discussion system on your user talk page. Structured Discussions simplifies talk page discussions with clear places to write and reply, and allows conversation-level notifications. This feature is not auto-enabled; users will have to enable it separately.
Existing wikitext discussions are moved to an archive. Disabling this feature will move the Structured Discussion board to a subpage and un-archive the previous talkpage. Learn more about activation.
As we work on {T332022: [Epic] Undeploying StructuredDiscussions (Flow)}, this text should be replaced to invite users to know that the feature will be decommissioned and to invite them to uncheck that Beta feature.
Allowed you to enable a structured discussion system on your user talk page. Structured Discussions was offered as a beta feature, but this feature will be removed from the wikis. We invite you to consider disabling this feature proactively.
Disabling this feature will move the Structured Discussion board to a subpage and un-archive the previous talkpage. Learn more about deactivation. Contact us if you experience any issue.
Links by order of appearance: