There’s Office online, which has a free tier and a “365” tier, whatever that means. Like that you have Office available 365 days a year? Good luck on February 29th, I guess. /j

Anyway, Microsoft transitioned Office into a subscription-based model, which I abhor because I just want to have a piece of software without feature updates, just bug and security fixes. So Office 365 is just normal Office, but on a subscription basis.