Hmmm. I still think Language Tool is an improvement over Grammarly. But I see the points about it maybe not being the most trustworthy.
I would personally vote for it to stay.
I also think inviting folks to install a VS Code extension feels odd. Most of our recommendations aren’t targeted at developers who would already have something like VS Code installed. Seems like this wouldn’t apply to a big percentage of the user base.
My two cents!