I’m seeing some examples like this:
entityBuilder.Property(r => r.TotalScore)
.HasColumnType("decimal(5,2)")
.IsRequired(true);
and the code to support this is here, so hopefully this is supported in the version you’re using:
https://github.com/aspnet/EntityFramework/blob/f416dd9a71a5a6a69715b4ba40a37e6f9da751ef/src/Microsoft.EntityFrameworkCore.Relational/Metadata/Internal/RelationalPropertyBuilderAnnotations.cs