All the numbers I've seen from all platforms unsustainable for the writer. You trade your own pacing and scheduling for a relatively small payout
unless you're successful, which is a different story. Like
@Envylope suggested, you also have to account for if you'd still be writing what you
want to for that payday. I think there's enough reason to experiment with different genres, but after seeing someone writing a few dozen "alpha werewolf" books simultaneously... Yeah, that sounds like Hell. They either really like werewolves, or it's the only thing keeping the lights on. If I were being paid enough to write that much werewolf fiction, it wouldn't take many paydays until I could afford to do what
I wanted.
That being said, the country your from may be a factor. The numbers I've seen across platforms are low for my home country, but I suppose it could be considered a lot more in some countries. Personally, I haven't seen any paydays worth taking, as you give at least partial rights away to your hard work. If getting paid for writing is your goal, then you could actually get paid far more for writing 1-2 page articles. I'm assuming these platforms are able to pay so little because there's an oversaturation of people that would practically pay
you to read their Sonic The Hedgehog fanfic. Like I said, that can definitely change
if you're successful. We don't have accurate numbers for how much people make when they go down the track of having their novels turned into cheap TV, or at least mass-published to every Walgreens checkout line. They
could be doing well, but ultimately, I think the dealbreaker would be how much they promote your book. If they'll actually promote the book, and you have other things to sell (as they'd likely own exclusive rights to any book you contract until another agreement is reached) you could count the "free" marketing as part of the payout.
Lastly, I'm pretty sure most of the platforms base their contract offers off
pre-existing success, so you could either expect a pretty lackluster offer, or know your worth. I can't recall which platform was offering $200/month, but that's totally not worth being contractually obligated to write, not risking your own distribution rights. You could easily make that much writing 2 or 3 articles in much less time. I'm surprised these platforms even offer that much, because if people were willing to take that, they'd easily sign up for some kind of creator reward program that pays out tenths of cents per view.
If I'm not making my (personal) stance clear enough, if you can't easily clear around ~8K/month under contractual obligation, I don't think it's even worth the stress. If they don't pay enough, there will come a day where you're choosing between real life and writing (emergencies, birthdays, etc.) and the writing won't even be paying enough to make that decision worth it.