Microsoft suck at naming things in general. It’s a problem across every single branch of the business, people keep calling Office 365 0365 because Microsoft insists on calling it O365 and people think that’s a zero. Also the name makes no sense anyway, why not call it Microsoft Office Online?

Then we have Microsoft Azure, except they renamed that to Entra despite the fact that both names are stupid. Then of course there is the entirety of the Windows OS lineup.