I have been running Zwift through wine on Ubuntu 20.04 LTS for the past two years with no problems. I ran Zwift this way as recently as Tuesday 1/11. Today I received the 1.21 update and now whenever I launch the game I get an error message stating I running a version of Windows which is not supported. I double checked my wine configuration and it has been configured to provide Windows 10 compatibility.
Please remove this check for wine users or provide a way to disable it.