Uninformed nonsense.

Its Finnish EU PRESIDENCY, which means it's paid by the EU budget.

Each EU country holds the rotating EU presidency for six months, which means they chair interministerial meetings, formally negotiate and propose compromise legal texts, etc. In this role the presidency receives a budget for promotional events, communication efforts, etc. The Finnish presidency decided to use part of the budget for this translation effort.

This seems to fit various EU goals well, eg to upskill the population, promote digital competences and encourage use of all 24 EU languages. Think of just the added value of having common terminology and definitions.