Yes, Copilot creates an actual presentation file you can save, just as it does with Word documents. Asking from the chat window gives a weaker result than working inside PowerPoint itself, so for anything that matters, open PowerPoint and use Copilot there.
More in Microsoft Copilot
Can Copilot write speaking points from my Documents?
Yes. In Word, reference the files in the Copilot side panel and it drafts straight into the open document. It can combine several sources, for example four or five project documents into one combined report or one set of speaking points.
Can Copilot change the font in Word?
Yes, directly in Word. Ask in the Copilot pane inside Word, with the document open in edit mode, and it changes the formatting there. If you ask from Copilot Chat instead, it creates a new Word document, which is much clunkier for formatting changes.
Can Copilot write VBA macros in Excel?
Partly. Copilot cannot create or run macros inside your workbook, but it can write the VBA code for you in the chat. You then paste that code into the VBA editor in Excel yourself and run it from there.