How is it delayed and slow? We recently got an update to Llama 3, a new Mistral model and Flux for generating images. All of them are a big step forward and I regularly see how big advancements are being made. I can see with my own eyes how they're getting more capable by the day...
So yeah, the bubble is probably going to burst. Because companies have pumped in lots of billions of dollars and inflated it to no end. That's not sustainable. And I can see how your experience might be different if you limit yourself to using ChatGPT. Because people want a big surprise with version 5 for some time now. But that's just hype. And has nothing to do with technology. Or competing products.
I think the main issue isn't directly that, but that they payed $600 billion for things like NVidia hardware, electricity, experts, ... And now they need to generate an absurd pile of money. That's why they might be doomed, because their product now has to fulfill ludicrous expectations.