Sorry for the Danish post i hope you can translate it.
The Ministry warns that Microsoft programs can create problems for written exams for students with Mac computers.
Users who have updated the programs to the latest version may experience the programs running slowly, freezing and crashing. This means that the examinees are delayed in their work and that parts of the answers risk being lost, write the Agency for Education and Quality and the Agency for IT and Learning in a notice to schools.
LibreOffice is pretty capable. There are also web-based options.
I just wish compatibility was better. Even if I save in ODT format in either Word or Writer, opening the file in the other program almost always results in formatting errors. Not to mention using DOC/DOCX.