My main point is that the main thing that is going for Windows, is not any sort of Objectively Higher Quality design,

That’s my original point: Windows isn’t objectively better but is isn’t as bad as people paint most of the time.

but it’s current popularity. Similar points for Adobe software and MS Office. On the other hand, Autodesk software for Engineering CAD does have a Objective upper hand, which cannot be trumped by just people one day deciding to shift to FOSS.

What makes Windows win over the market effectively is 1) popularity driven by more users, 2) specialized software that you can’t find for Linux and 3) a development ecosystem that’s hard to replicate elsewhere.

But… there are a lot of industry specific use cases where Adobe and MS Office still have the upper hand. We can’t for, instance, get a replacement Office with an MS Project that does all the cool things between it, Excel and Dynamics NAV to provider a solution for project management across an entire business. After all we’re talking about a cross-application solution that is capable of going from checklists, reports, Gantt and Kanban to feeding information in an out the ERP taking data from accounting, RH, manufacturing, logistics to through sales. We can try (and I would like to see it that way) to replicate it with other tools but the level of pain and development time is way too big.