Can we control which responsive images get generated via Media Library?

Hi,

you can now customize the breakpoints which will generate the responsive images:

module.exports = {
  upload: {
    breakpoints: {
      xlarge: 1920,
      large: 1000,
      medium: 750,
      small: 500,
      xsmall: 64
    }
  }
}

You can find more informations here: Upload - Strapi Developer Documentation