I installed both offline and server edition 26.2.20.3187 in the reports and the other screens where the display is print ready, the (Copy to clipboard) button doesnt copy anything in the server edition but the offline software has no problem
Test:
Open Sales Invoices, scroll to the bottom you will see (Copy to clipboard) this page is a list and isn’t meant to be printed, so this copy button works normally on both versions.
But now open one of the invoices with View button, here the (Copy to clipboard) button doesnt copy anything in the server edition but does copy normally in the offline version
same behaviour for all the pages visible after pressing (View) like the Reports