Perhaps see the ongoing discussion at
Remember that Finder is not a “container” but is view into the macOS file system with certain features to deal with those files, folders, and remote network resources. DEVONthink is not a Finder replacement. Indexing is different than Importing and brings its own issues and risks which are not only discussed often here on this forum by many (search) but fully explained in the DEVONthink Manual. If not understood could lead to “surprises”.
Me, I rely fully on DEVONthink’s features and power and don’t delegate to any other source of “intelligence”. Just me.