So the online version of Office 365 and the desktop version and the mobile apps will share a lot of the same code. This would also make it far easier to deliver desktop apps for Linux should they decide it's worth it.
They've also worked together with Linux projects to make the Windows Subsystem for Linux a thing (so you can now actually "install Ubuntu" from the Windows app store).
The vendor lock-in company you're thinking of is now called Apple, not Microsoft.
So the online version of Office 365 and the desktop version and the mobile apps will share a lot of the same code. This would also make it far easier to deliver desktop apps for Linux should they decide it's worth it.
They've also worked together with Linux projects to make the Windows Subsystem for Linux a thing (so you can now actually "install Ubuntu" from the Windows app store).
The vendor lock-in company you're thinking of is now called Apple, not Microsoft.