One thing about nullable reference types I personally find still a bit annoying is that you need the bang operator (!) in #csharp for #linq2sql expressions like OrderBy or Where even though it doesn't matter for the translated SQL. I wonder if there's a way to fix that without making a potentially not loaded entity non-nullable and hope for the best.
Anyone got an idea if there's something in the pipeline for that or perhaps an open feature request to vote up?