[frabia]

Yes, but also no.

I think the general sentiment (spend time on things that matter) is valid, but to some extremes it might bring more damage than value. In this specific case, either you have a disruptive product such as GPT that sells itself, or you will need to promote the s*t out of it before it has some traction (the common fallacy of "build it and they will come").

So I agree, spending a ton of time customizing a signup or landing page, a powerpoint presentation, etc might be at the same time a waste of time, and the most important thing to do - depending on the circumstances.