Yes. Export your presentation as a PowerPoint (.pptx) file to continue editing in Microsoft PowerPoint or import it into Google Slides. You can also choose Google Slides in the export window. Napkin then creates the file directly in your Google Drive.
Text and supported shapes remain editable. Images and styled images created with Effects remain images, so their contents are not individually editable. Review fonts and layout in the destination app before presenting.
The Free plan includes a limited PPT export allowance. Plus and Pro include unlimited PPT exports. Check the export dialog for your remaining allowance. Google Slides exports count the same as PowerPoint exports.