bbPress.org

dashboard>pages>all pages> and select the ‘activities’ page.

From there select ‘page’ on right hand side

scroll down and you should see ‘topics for posts’

and a tickbox ‘use a bbpress forum topic for comments on this post’ – untick this.

If you do not see that part, then click the 3 vertical dots and scroll to the bottom of that page, select preferences and then panels and then click the topics for posts

Sorry this is wordpress not me making this hard