Microsoft is notorious for starting partnerships that end poorly. Microsoft and IBM partnered to create OS/2, then they left the project and created Windows NT

Microsoft is notorious for starting partnerships that end poorly. Microsoft and IBM partnered to create OS/2, then they left the project and created Windows NT. Microsoft and Sybase partnered to work on a database, then split and created MS SQL Server. Microsoft partnered with Apple to work on Macintosh software, they learned from the Macintosh early access prototypes and created Windows 1.0 behind their back. Microsoft "embraced" Java, tried to apply a extend/extinguish strategy and when they got sued they split and created .NET. Microsoft joined the OpenGL ARB, stayed for a while, then left and created Direct3D. And started spreading fear about OpenGL performance on Windows. Microsoft bought GitHub, told users they came in peace and loved open source, then took all the repository data and trained AI models with their code.