I think it's not just your opinion; several factors are at play here. First, the website buying and selling market has cooled down considerably, with less money being spent, fewer quick flips, and more caution.
Second, many people no longer search for "Flippa" or "website flipping" on Google. I think they go directly to platforms like Flippa or private communities.
Third, Google's changes (AI, much more selective results) have reduced traditional informational searches.
I agree with many who say that AI will be a key tool in the coming years; many people are literally searching for everything through it!