I need to make sure the scale bar i am using on this map on QGIS 3.22 is accurate. None of the tutorials available online teach how to check the accuracy of a scale bar, only how to set it and customize it, and similar questions asked here are too specific and not related enough to what i need.
I only started using this software a few days ago, so general advice on the subject is welcome. The map uses the same CRS as the project (EPSG: 4326 - WGS 84) and the scale i'm currently using is 1900000.
I need to adjust the scale bar so it is accurate: How do I do it?