Entity Framework Core many-to-many navigation issues

Issue with many-to-many relationship + TPH inhertitance in Entity Framework 6

Although I'm very sure this also applies to earlier versions that support this kind of mapping, I'm having trouble with EF6 at the moment. I worry that I already know the answer to the query at hand, but I'm hoping that either I'm doing something incorrectly or that there is a better solution than what I've provided here. For clarity, all courses a...

Entity Framework Core Code-First: Cascade delete on a many-to-many relationship

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Entity Framework Core: many-to-many relationship with same entity

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Issue when inserting new entity with relationships to existing entities (Entity Framework Core 1.1.0 )

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Entity Framework Core Many-to-Many Relationship not loading from database

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Many-to-many relationship in Entity Framework Core when one entity has composite primary key

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Seeding the database with a many-to-many relationship using Entity Framework Core

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Entity Framework Core 2.2.6 Many-to-Many relationship (extra column at table creation)

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Dotnet Core 3.1 Entity Framework - Issues with entity.SetTableName not currently available

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ASP.NET Core & Entity Framework Core : one-to-many relation and navigation properties

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