Comment #⁨7⁩

Also, developers on all platforms know that it's a standard feature in most existing treeview widgets to be able to filter nodes, and only display those that match a given criteria (e.g. "contains term/tag") .

Personally, as a long-time productivity geek, I wouldn't call "outliner" an app that cannot do this. So Tana, in all its greatness, is not an outliner yet :-)