Earlier this year they put out a blog post that announced that their cross-platform versions share a common codebase for "core functionality". https://techcomm

Earlier this year they put out a blog post that announced that their cross-platform versions share a common codebase for "core functionality". https://techcommunity.microsoft.com/t5/Office-365-Blog/Shared-Office-codebase-for-Windows-Mac-iOS-and-Android-means/ba-p/150291 https://techcommunity.microsoft.com/t5/Office-365-Blog/Share...