For Qiskit (IBM Quantum's open source platform), we have non-IBM contributors who sometimes contribute with Windows. All of IBM Quantum team uses macOS/Linux/WSL, but they want to keep support for those non-IBM contributors. Many of them are researchers and not engineers, so asking them to use WSL is a non-starter
And then my other motivation is for a volunteer project I'm doing this weekend, another teammate is also not at all a developer. I was thrilled to use Pants's builtin Python interpreter from Josh to make it much easier for him to run things with minimal config. Until finding out he uses Windows