No, false. I was a lawyer once. Lawyers under ... 60 use Word. Courts up North get all kinds of horribly formatted dreck, but it could be worse. In the South, they get keyboard fonts but justified. In California, they get filings on paper with line numbers on the left that are strangely unaligned with the lines of text.

The only court I know that is truly finicky about formatting is the US Supreme Court, but they have sensible rules, like requiring Century, and book-width lines for actual readability.