“Windows and Windows Store, with DirectX 11 or DirectX 12 and Shader Model 5.0”.
I understand that “High Definition” under modern PCs, because the average PC is basically DirectX 9. I as an indie developer is not profitable to use “High Definition” ?
The HDRP is offering high-quality fidelity, but it obviously comes at a cost. If you plan to target a broad range of players, then the standard built-in pipeline (“3D”) might still be your best friend. You can upgrade to the LW or HDRP at any time, anyway.
Note that your assumption that the average PC is DirectX9 is probably wrong. Looking at the steam hardware stats : Steam Hardware & Software Survey
and that DX11 is out for 10 years now (even on Windows Vista), I think that can safely say that the average is DX11
You might be able to ship with HDRP and still run “smooth” on lower hardware by tweaking the HDRP settings (that’s what game settings are for, right ?).