Audio Playthrough not working

I found a similar post on here some time quite recently. I have teamviewer 15.6.7 on both machines, but the options list is different between the two machines. On Ubuntu, there is no 'Remote Control' section, only 'General', 'Security' and 'Advanced'. Is this a cross-platform issue?

This arose as I was doing composition work remotely, and discovered that none of the Windows audio would play through on to the Ubuntu laptop I was physically on. (I am accessing a Windows PC through a Ubuntu laptop)