MUI Forms and Validation Controlled vs Uncontrolled Patterns Controlled (recommended for most cases) State lives in React. Every keystroke triggers a re-render; use for small-to-medium forms. Uncontrolled with refs Use for very large forms where performance matters, or when integrating with non-React code. --- TextField Error and Helper Text Patterns --- FormControl / FormLabel / FormHelperText (Non-TextField) Use these primitives for custom inputs like checkbox groups or radio groups where does not apply. --- React Hook Form + MUI React Hook Form is the recommended library for complex forms.…