The recent update of Grammarly introduced native macOS support, which allows you to use Grammarly in ALL the native apps on your Mac!
This is awesome as you can now enable/disable it on a per-app basis and no longer are required to use the Safari plugin; if you use WordPress, you will know that it does not work that great these days.
I have been using it since December 2nd, 2021 and so far it is working great, I did disable it in Slack as it was getting on my nerves as well as iTerm2 as I did not see the point in having it give spelling corrections in a terminal window.