It's not calibre that needs to change; it's your Android device.
See
https://manual.calibre-ebook.com/faq.html#id23 in the Calibre FAQ especially
Quote:
Note
With newer Android devices, you might have to jump through a few hoops to get the connection working, as Google really does not want you to be independent of its cloud. First, unlock the screen before plugging in the USB cable. When you plugin in the USB cable you will get a popup notification. Make sure it says some thing like “Transferring Media files” or “MTP (Media Transfer mode)”. If it does not, tap the notification, and change the mode to Media Transfer (MTP). You may need to restart calibre at this point in order for your device to be recognized. Finally, you might get a popup on the device every time calibre or the operating system actually tries to connect to it, asking for permission, tap OK.
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