I hope that a good few book readers will respond to this little tidbit. Quite a few writers post quite a few posts and videos about how their novels are progressing.
He wrote the first chapter, the plot outline is ready, what are the characters like,
he managed to write 3 pages this week
he has half of the novel
and there is still more to list
My question to the readers is really just one...
Does this interest you??

Yes, a kind of "teaser" can always be good, a little insight into what the next novel will be like, what the theme, mood, etc. will be.
But there's not much to talk about afterwards, and if we did, we'd be revealing too much to make the post or video interesting.
But why?
The writing process, and this is true for all genres, is actually the same in all cases:
• Idea
• Character Development
• Plot Outline (optional)
• Source Research
• Chapter Development
• Review, Editing
And really, in each case, you can only post about these.

And if we want to be interesting, I think we would be revealing too much about the novel.
Let's take the characters. It would get boring after a while if we wrote for each character that something unexpected happens to them, this is their job, this is their hobby, this is where they live. However, if we wrote that their tragic fate gets better, this is what will happen to them in the novel, this is what will happen after the chapter, that would reveal a lot.
And then why buy the novel and read it if almost everything is revealed in the posts anyway? Honestly, I'm not interested in posts about how the writer is progressing with his novel, what the characters are like, where the unexpected twists will be, what the characters' motivations are.

Because it takes away all the secrets and experiences.

So there's no reason left for me to read the novel. How are you doing with this? Doesn't posting too many posts take away too many secrets and experiences? And doesn't it get boring when the posts are actually about the same topic, just with different decorations?