Lemmy as a platform is built on FOSS. There are going to be Linux/FOSS advocates all over here.
I say this as primarily a windows admin who recently started diving into Linux.
The "real answer" is that Windows 10 is supported until October 2024. You have until then to make your decision or switch to an alternative because after that, W10 won't be getting more updates and you risk running an unsecure system at that point.