Nothing has exactly the same experience as MS. I don't think there is a clone project for it.
The two you listed are your best options.
Does LibreOffice have any issues that prevent you using it? If not, it's probably that your expectations are set by your comfort and familiarity with Office and that is the problem you need to solve.
If you're not keen on web DRM, might be worth considering Firefox. The less chromium users, the easier it is to stop companies implementing this.