Just a day after Microsoft announced a major upgrade to Microsoft Editor, you can grab extensions for the service on Edge and Chrome. Microsoft Editor reviews your writing and checks for spelling and grammatical errors. If you have a Microsoft 365 account, it also gives you advanced grammar and style suggestions. A help and support page from Microsoft spells out all of the details.
Microsoft showed off Microsoft Editor in a new video and discussed it in an online briefing. Microsoft Editor is similar to Grammarly. It has a free version that you can use just by having a Microsoft account and premium features that you gain access to if you have a Microsoft 365 subscription.