The problem is: suppose Google has an equivalent model (they do, but if you disagree, just pretend). Suppose they do. What then is OpenAI offering that makes its product more intriguing? Nothing. They have a chat interface. An intern can make a chat interface.
> ChatGPT is the fifth most visited website in the world!
To me, this is absolutely worthless information. That DOES NOT mean that ChatGPT is in the clear and nobody else will overtake them.
Your analogies really paint the picture here aptly. Salesforce is not just a database, it's a lot of stuff on top of it. AWS is not just a server, it's a lot of stuff on top of it. Uber is not just a GPS wrapper, it's a taxi service. That's a different thing.
ChatGPT... is just a model. What they add on top approaches zero. Because that's just how the technology works. It takes text and gives it to a model and then spits out the output. What more can you add onto that system, removing the model? Make it easier to input text? Make it easier to get output? Well that's truly trivial to do, and I would argue ChatGPT isn't even in the top 10 when it comes to that. Today.