2. Commercial Datacenters (theyre ahead at least)
3. Chip production (Google is manufactoring proprietary chips)
4. Consumer OS (Chrome, Andriod)
5. Consumer Hardware (Pixel)
Basically google has access to data that OpenAI will never have access to, can lower costs below what OpenAI can, and is already a leader in all the places OpenAI will need massive capex to catch up.
So it matters less than one would think. Also, ChatGPT can do 'internet search' as a tool already, so it already has access to say Google maps POI database of SMBs.
And ChatGPT also gets a lot of proprietary data of its own as well. People use it as a Google replacement.
If this is your only criteria I think you have a misunderstanding of what proprietary data is and ways companies can mitigate the situation in the inference stage.
And non-western and non-Mandarin language support (the only other competitors are Indian, Emirati, and Saudi sovereign models).