Internal Audio Capture in MacBook Air M1 - Not available?

OH MY GOD!

• Calling Apple Customer Care more than 100 times,
• Begging on YouTuber's video comment section
• Almost searched all the social media available on this planet.

but I didn't find any satisfactory answer that how to record/capture in-game audio for streaming online in Macbook Air M1. this is my last try hereafter that I'll flush my Macbook Air M1 in cummod.

can please anyone helps, because I guess Apple itself still searching why they even made the "M1" Chip?