the setting is "Toggle default view mode". When you click on that it only changes the default view. However, if I have a note open in say Edit mode, and I close Obsidian, then reopen it, that note is still in Edit mode, even if the default mode is Preview.
Expected result
The note to open in default view mode.
Actual result
The note opens in the mode when it was open at Obs closing.
@mrjackphil To me default view mode indicates the mode it is in when the app is opened, i.e. when you start Obsidian. That is how I have always experienced “default”.