Also, MS does absolutely support EoL versions of their OS - it took MSVC's STL until 2024 to finally drop support for Windows 7 (whose final ESU update was 2023): https://github.com/microsoft/STL/issues/4858 - it isn't unlikely that they (STL maintainers) are not going to get approval for dropping Windows 10 support before 2029.
The question is not odd at all. Windows 10 Enterprise LTSC 2019 is supported until 2029: https://learn.microsoft.com/en-us/lifecycle/products/windows...
Also, MS does absolutely support EoL versions of their OS - it took MSVC's STL until 2024 to finally drop support for Windows 7 (whose final ESU update was 2023): https://github.com/microsoft/STL/issues/4858 - it isn't unlikely that they (STL maintainers) are not going to get approval for dropping Windows 10 support before 2029.