Reimbursement of costs in home office

In the Federal Supreme Court ruling 4A_533/2018 of 23 April 2019, it was inter alia disputed between the parties whether the employee was entitled to compensation for the use of a room in his private home as a study or archive. The Federal Supreme Court affirmed this.

Does this decision automatically apply to home office-cases in times of Covid-19? The author critically assesses the Federal Court's ruling in view of Covid-19."