This doesn't work; by this definition, Charles Dickens never wrote any novels.
Dickens didn’t write ‘novels’, he wrote ‘serials’, which are a subtly different thing: they were not composed in one sitting, rather in instalments.
The question is, of course, were they conceived and planned as a single entity and in advance. The answer to that is… complicated. But, mostly, no too.
Here’s an article about his method:
https://www.dickensnotes.com/introduction/general/
Much as there’s debate whether you can consider a collection of comics with a single story arc a ‘graphic novel’, we can debate whether a Dicken’s serial published over 18 months is a ‘serial novel’ when republished in a single volume.
In my opinion, they both are or they both are not—and I personally tend towards ‘are’.
What I do know is that comics fans are especially fixated on the distinction and it has little to do with those kinds of technicalities. It's about prestige.