This information applies to version(s): 2, 3
DxO PureRAW is an independent program, not a plugin. DxO PureRAW offers direct export to Adobe Photoshop Creative Cloud versions, and Adobe Photoshop Elements 18.0 and supports this workflow. However, you can select any other third-party software to export your images to. It just needs to be able to open linear DNG files.
Additionally, DxO PureRAW offers a plug-in for Adobe Lightroom Classic CC.