The cross-platform stuff is interesting... however, in practice almost everything outside Linux containers is only weakly supported. You have to jump through some hoops to use alpha/nightly builds of Docker hand installed in Windows 2019 or later Win10 builds in order to support both Linux and Windows containers on a single system. I think the work with WSL2 may make things better better as a result.

The naming in Windows and Mac, along with the limitations of the Desktop implementation are also frustrating. Don't get me wrong, I really like Docker as an orchestration base, I just don't think the cross-platform support is a value add in practice and in fact detracts as a whole imho.