Fine at Work, Sloppy at Home - Grammarly?

I’ve noticed that when I’m writing documents at work (i.e. on contract, being paid) I hardly ever make grammar and spelling mistakes. However here at home, it’s a different story as I’m probably rushing more and don’t take as much care.
So I’m trying out the free version of Grammarly and the associated plugin for Chrome. It doesn’t play quite nicely with the WordPress ‘block editor’ (Gutenberg) but there are easy workarounds.
It’s pretty good at spotting obvious errors. And giving me valuable feedback on how I’m doing!