Feishu and DingTalk called 'outdated': Is it really just about aging products?

I noticed an interesting detail: ByteDance's recent adjustment merged the Feishu product team into the Doubao product team, making Feishu head Xie Xin report to Doubao head Zhao Qi. This move is exactly like folding an old business team into a new one, where the old leader ends up as the deputy to the new leader. Five years ago, Feishu was ByteDance's biological child; now it's become a role that needs to be "integrated."