After two short LOI courses, C# Essentials and HBO Programming in C# , I also passed the Microsoft 70-483 exam.
The courses of the LOI can be useful to get you started in C # but often consist of a collection of references to free instructional videos to be found on the internet, including the Microsoft Learn website and other free learning resources.
Personally, I didn’t mind connecting to the 70-483 exam.
In the meantime I have also started preparing for the next C # related exam, this time I try to master the material directly through the Microsoft recommended course material.