Log the function name when doing_it_wrong is triggered (best used very early, for example in a mu-plugin)

log_function_name.php

/**
 * Log the function name when doing_it_wrong is triggered
 *
 * @param string $function_name The function name that triggered the error
 */ 
function log_function_name( $function_name ) {
  // Taken from https://x.com/jkohlbach/status/1912769898171998653
	if ('_load textdomain_just_in_time' === $function_name ) {
			error_log( wp_debug_backtrace_summary() );
	}
}
add_action ('doing_it_wrong_run', 'log_function_name', 10, 1 );