It doesn’t do anything for me.
I always browse using the all site stories. News will all display in Feed mode by default. Setting a different view mode for a feed in particular has no impact. If I switch to Text or Story mode (the main mode above the list of news), then all news will use that mode.
For example
Feed A is set to Feed mode
Feed B is set to Text mode
When I browse the all site stories (or any folder), I expected to get the list of news as
A.1 = Feed view
B.1 = Text view
B.2 = Text view
A2 = Feed view
But now it just use Feed for everything or Text for everything.
I’m totally confused on where the setting has any effect! Please show me the light 