You want my Kobo Utilities plugin. It has function to fetch the reading status of a book from the Kobo devices and store it in the library. You can send this back to the Kobo device later if needed.
Otherwise, there is discussion on how to do this in the Kobo forum. It can be done by, very carefully, copying the database from one device to the other.
And as to "doing it all the time", for most of the ereader devices and apps, the reading status is not in a place it can be retrieved. Kobo is the only dedicated device that I know of that stores this in a place that can be seen when the device is connected. Sony probably did, but they stopped making them years ago. I haven't looked at many apps on Android or iOS devices, but, for the few that I have, I couldn't see where this data is.
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