Here are my thoughts on GDPR in TeamViewer to the extent that this program allows you to transfer your clipboard.
there should not be an easy way to transfer clipboard content beetwen computers. Like it is currently in TeamViewer APP (they are transfered on the fly and you can catch data from distant user even if you are not active on remote screen)
it must be done by clicking with mouse on the ICON's "Clip To Remote" "Clip to Local" Local User should be sure what he is doing and which data will be copied
such ICON's should be visible on the top, even if even if I mnimalize "TV ToolBar" It must be done by clicking in icon as using keyboard default COPY/PASTE shortcut is too easy and may lead to unwanted "Security incidents"
each clipboard transfer should be loged into the logs There must be accountability