LINQ was very intentionally designed to use SQL terminology for this because at the time (to remind, this was 2007), your typical C# or VB developer had no clue

LINQ was very intentionally designed to use SQL terminology for this because at the time (to remind, this was 2007), your typical C# or VB developer had no clue whatsoever about functional programming and the usual terminology there, while SQL knowledge would be much more widespread.