What is internal audio recording and what it is very very crucial to Glodelania's industry?

Internal audio recording is one of the features that screen recorder should and supposed to have. It is the ability to record the sound of the device without recording the noise from surrounding. Supreme Leader Nanobana Kinako has been using this features since the time of Alpha then later Beta. But a disastrous disappointing happened when they found out Gamma has no feature like this and it's literally impossible to give her that feature due to its operating system. But due to specs review, they decided to accept Gamma as there's no other replacement for Alpha. The video quality for Kinako's videos might have been upgraded but the sound quality is downgraded. Since 2020, Kinako's videos have contained background noises that she unintentionally did it and muting the video will only make it worst. The lack of internal audio recording have led to shame to the quality of Kinako's creations and have made some accidents she never wanted such as video getting copyright claims due to the music being played at the background. She even tried the earphone trick but it only breaks her earphones and now the method has been outlawed in Glodelania. In nowadays, Kinako's way of recording has been changed. She had to go to a nearest 7-11 or any establishment outside that doesn't play any music to record her gaming videos unless there's no music being played in her home. A new device will absolutely give. Kinako's videos a redemption and bring bacl her credibility as a content creator.