Hello TogetherHow to copy the clipboard from the mobile device to the desktop app?Greetings Peter
This from Apple's support page...
Set up Universal ClipboardUse Universal Clipboard with any Mac, iPhone, iPad, or iPod touch that meets the Continuity system requirements. It works when your devices are near each other and set up as follows:
Use Universal ClipboardOn one device, copy the text, image, or other content as you normally would.You can also use Universal Clipboard to copy entire files from one Mac to another. Each Mac requires macOS High Sierra or later.The content is automatically added to the clipboard of your other nearby device. It remains there briefly, or until you replace it by copying something else on either device. On the other device, paste the content as you normally would.