So the theory would be that grammarly desktop sees the gif (what? How?) and calls some browser accessibility function on it (or?) which chrome cant handle and it crashes?
With the bug I saw years ago, just having certain accessibility features of the browser enabled _at all_ caused the bug (we were able to temporarily mitigate by disabling some obscure Edge accessibility feature via a launch parameter). So, my theory here is Grammarly is just enabling an optional accessibility feature in Chrome that has this bug when trying to "read" the gif.