The trick is antitrust style bundling. The massive pile of documents and processes tied to GSuite is a moat which makes it hard to switch to something like o365. Since a company might effectively be locked into GSuite (the primary product), if Google forces companies to buy Gemini (the secondary product) by bundling it with GSuite, they've given themselves a moat in the LLM space using their document/email moat from GSuite.

This is essentially what Google has done, and it's a shame the US is so weak on enforcing antitrust laws.