[crimsontech]

I have to use Mac, Linux and Windows for work.

You need to either get used to using the opposite cmd key to the letters you are pressing or remap cmd to caps lock so you don't need to contort your thumb underneath your fingers. I learned this the painful way.

In the end I settled on using a Japanese HHKB keyboard with US layout keys for the symbols and a bit of on-device key remapping to find my ergonomic end-game that I can use on all platforms.

Do explore the key remapping in MacOS though, you can have it set up so you can copy, cut, paste etc with the ctrl key instead of the cmd key.