I occasionally need MS Office for compatibility, particularly with work.
Ironically we do use Libreoffice on the main computer at work, but it has given us issues on occasion and Office online last I checked lacked certain features.
That said, even if you think ‘just use x instead’, I get Office 365 Family for around £40py on discount. So basically everyone in my family gets MS Office and 1TB Onedrive each. The latter of which makes it worth it alone for (encrypted) cloud backups.
The only time I’ll probably abandon it is if the price goes up dramatically and/or the cloud storage becomes useless.