It really depends what you're coding. I'm a former PM who can't code, and I'm currently using GPT-5 in Cursor to write an internal application for my business of acquiring and operating e-commerce brands that sell on Amazon. I'm really vibe coding (just clicking accept without ever reading any of the code changes), and it's working great! I've got a whole dashboard that's retrieving inventory and sales data from multiple Amazon stores, projecting future sales and reorder point, etc. The code might be total dogshit, but it's incredibly useful for me (and also really enjoyable).
That said I might be sort of a weird case, since I am accustomed to designing and documenting product requirements, the fact that it's just for me means architecture doesn't really matter, and I'm competent enough to help it resolve some design problems like the fact that it was obviously hitting the wrong Amazon API that was pulling a report of every single sale as a line item rather than just a report with total sales numbers, etc.
That said I might be sort of a weird case, since I am accustomed to designing and documenting product requirements, the fact that it's just for me means architecture doesn't really matter, and I'm competent enough to help it resolve some design problems like the fact that it was obviously hitting the wrong Amazon API that was pulling a report of every single sale as a line item rather than just a report with total sales numbers, etc.