I'm not sure that there's a startup winter at all, it looks like a web browser tech winter to me. AFAIK YC also changed their focus and now are looking for physical things much more - like supersonic jets.

There is only so much you can do with organizing information and entertainment through HTML and JS and make a profit of it. Maybe there will be a nice whiplash gold rush for making the web great again as this pile of garbage doesn't inspire anyone anymore.

That will happen as soon as a new business model alternative to what caused the enshittification appears. Alternatively, maybe a new tech will emerge that will offer freedoms and possibilities similar to the early days of the web.