The Linux audience is software engineers and the companies they who employ them.

So why haven’t such an open source application materialized after all these years?

Well you'd need to fund the cost of a kernel driver signing certificate and get it through WHQL as well. That's just for a start. So this wouldn't be something you could build yourself.

Surely you’d just need to turn driver signing off

Back when I was a desktop Linux user, a very sizeable portion of the other people I knew that used it weren’t “software engineers”. They were ‘power users’. I don’t think that my experience was all that atypical.

The need is more personal than corporate.

There are corporate solutions (like the Paragon drivers), they just suck. Paragon tried merging this code into the Linux kernel, but the code was so bad and unmaintainable that it was rejected. The FOSS solution is using FUSE, but that requires a UNIX-like OS for easy porting. Unless Windows ditches the NT kernel altogether, I don't think you can expect native filesystem extensions beyond NFS support.

GNU philosophy is not about moneymaking or footing the bill. Sometimes a problem gets worse when you throw money at it.

If there was a Linux OS focusing on desktop/laptop users that offered a highly polished user experience - comparable to the best of MacOS and Windows - I would be very happy to pay for it.

I am probably in the minority of Linux users though.

I do not find macOS or Windows to be polished. Linux isn't either. They all just have different areas of roughness.

> "Sure but the Linux audience is certainly not one that pays for such things."

Eh? People just pay for their stuff. The problem is there isn't really a market for OSes (as a consumer), period. Unless you build a PC yourself, which is not the norm, you don't usually even buy an OS.

This has nothing do with whether the linux audience pays for stuff or not...they pay fine. It is true that it is relatively niche even for linux folk to want to do this sort of thing, but that has more to do with laptop vs desktop form factors than the market. If it were a common need, I think it would be a common thing found on the market. In fact the existing ext4 stuff for Windows indeed used to be paid, but this was primarily for Windows users, Linux users have had no issue accessing ntfs drives for ages, and generally didn't really enjoy giving Windows access to their drives anyways, what with the market for viruses and whatnot...