Do second language users understand more in a lingua franca situation than that of speaking to a native? If so,

Do second language users understand more in a lingua franca situation than that of speaking to a native? If so, why?

Is standardised English the way forward for second language teaching?

Has the global standard of media English implicated the authenticity of Standard English teaching?In the attach file is how far I have got. If you can focus on the areas that ive highlighted in green, it would be much appreciated