What is the best practice for logging errors in an ASP.NET Core MVC application?

Use a structured logging framework like Serilog or NLog. These frameworks allow you to log errors with context (e.g., user ID, request ID, timestamp) and easily integrate with various logging sinks (e.g., files, databases, cloud services). Avoid logging sensitive information. Implement a global exception filter to catch unhandled exceptions and log them before displaying an error page.