For most businesses, Microsoft still holds a monopoly position on desktop OSs. For a lot of smaller IT departments, this bleeds into back-end servers as well.

For most businesses, Microsoft still holds a monopoly position on desktop OSs. For a lot of smaller IT departments, this bleeds into back-end servers as well. Microsoft has the Windows Subsystem for Linux, allowing Linux binaries to run on Windows. How about the reverse? Get WINE to the point where Linux (or FreeBSD or some fully source OS) can reliably run Windows binaries. Along the same line, provide portable libraries to allow other office suites to reliably edit MS Office files (docx, pptx, etc). Maybe Adobe or someone will come up with a commercial competitor, instead of just LibreOffice. Make Windows and MS Office a choice, rather than a tax businesses have to pay to be compatible with everyone else. That would go a long way to establishing trust.