According to the search results, it is not definitively confirmed whether Mack has officially left Airracks videos or the Airrack Crew. However, it is clear that Mack has been gradually reducing his presence in Airracks videos in recent times. His decreased involvement in Airracks content is likely due to his newfound focus on his own YouTube channel, where he is exploring a different creative direction and producing his own content. There are also rumors that Mack left Airrack to collaborate with MrBeast. While he may not have formally announced his departure, his reduced presence in Airracks videos indicates a change in his priorities and creative pursuits.