Is it possible to use a SharePoint Image Library in PowerPoint for organization assets?

rehtsetwhat you are trying to do here is using the Organization assets in the Powerpoint it is not possible as PowerPoint comes with three options for pictures.... which are uploading images from this computer, Stock images and online images which is from the internet where the stock images is the best one as all of the images are from Microsoft different sources

here is more details about stock images.... https://support.microsoft.com/en-us/office/insert-images-icons-and-more-in-microsoft-365-c7b78cdf-2503-4993-8664-851085c30fce but Organizations assets are totally different which can be only used on Sharepoint sites only.