While you can still buy Microsoft Office once and use it “forever”, I much prefer the $129 a year, 5 users deal with 1GB of online storage per user and each user can use office between their computers, online and on mobile regardless of operating system.
A desktop only office suite would do me no good as I go back and forth between platforms.
For your example, Microsoft can alter that price any time it sees fit, discontinue platforms you use, alter the interface drastically or cut a crucial feature in tomorrow's update... I wouldn't cope with such, and am sorry for those who must.
Word for the Mac has been in continuos production since 1986. It made through a 16 bit MacOS (I’m yada yada yada’ing) , to 32 bit “clean” System 7 on a 68040, to classic MacOS PPC to native OS X on PPC Carbon 32 bit, to x86 64 bit OS X APIs to ARM.
Would you really want to use Windows 3.1 Word in 2025? One of the major issues with Windows is that it carries stoubf cruft from 1992.
There are for instance still a dozen ways to define a string in Windows programming depending on the API and you have to convert between them