OS/2 was known to be rock-solid back in the day. It was the OS of choice for a lot of financials. Everyone moved to Windows NT when 4 came out, though, because of the way Microsoft did licensing.
Can you elaborate on what the difference was between how the licensing worked on OS/2 vs NT 4? What was the big innovation?
https://www.itprotoday.com/windows-78/ibm-microsoft-warned-p...
Other articles report that computer producers were given Windows "for free" as long as they did not offer nor support OS/2 on their hardware. Microsoft applied this practice for a few years and indeed lost income by giving Windows for free, but it ensured that the regular user never heard of OS/2 and then when IBM gave up the situation changed. Besides, Microsoft would still make money from Office and other products.