Software suite for nation wide pre-collage tests in Finland

Being the birthplace of MySQL and Linux, naturally it's open source. Question is the math editor good enough?

test editor here: http://digabi.github.io/rich-text-editor/

Finnish education have gotten good scores internationally and ease of testing and administration speaks for digitalization. Still isn't the cognitive context switch caused by looking through menus to high for such a stressfull setting?

(article in swedish) https://svenska.yle.fi/artikel/2018/04/05/oro-over-digitala-...