For clarity:

You created this note from CoMaps, so I will assume you based your criticism from what you see on CoMaps.

CoMaps shows vector tiles, i.e., it can recompute labels of places on the fly.  If you configure CoMaps to use French as the default language… then all the places where a French translation is available will be shown differently.  That is why you see "Laerne", which is the French version of the name of that town.  You can scroll the map and also see Anvers, Louvain, Courtrai and more, not to mention cities all over the world where OSM is aware of a translation.

If you configure CoMaps to use "Local language" or English, then the original Dutch name, which is "Laarne" will be shown.

That is why I wanted to confirm that there was no problem with OSM data for the main name.  I dug through the history of the OSM object, and for the last 15 years it has consistently used name=Laarne, which is the correct and official Dutch spelling.