Why not just run the ARM images instead of the x64? Granted not everyone makes ARM images, but in a year or so I fully expect that all serious Docker images will have ARM support (not because of Mac, but rather because of ARM’s progress in the server space). And in the meanwhile, building the image yourself isn’t that hard.
Why would your employer pay you to build and test ARM images when the server they're running on is AMD64? Okay, let's be realistic: they'll probably never find out. But still this is wasted effort when you could just as well use a regular x86 machine for development. Cross compilation will lead to many small problems that add up over time...
More likely than not, those servers are at AWS. And if that's the case, once all the components have ARM images the server instances can be switched over to the M6g instance type for significant cost savings.
Even if not AWS, every cloud provider will have cheaper ARM offerings in a few years. The writing is on the wall at this point. Not to mention that some significant portion of the PC market will certainly follow suit, and now whether you’re developing for desktop, mobile, or server, there’s a good chance you’ll be targeting ARM.
