GPT-4 has fully altered my dev workflow. I don't think I could move away from it unless there was a clear, equivalent, alternative.
Not only on the OpenAI UI, but also via the Cursor IDE which I actively use with an OpenAI API Key.
Even if you don't use the OpenAI UI you'll likely end up using the produce via other products. Github Copilot, Arc Browser, Duolingo – likely more in the future – all use GPT under the hood.