Things I have seen that are usually indicators (although not always as it can vary from company to company).
* Hiring comes to a halt.
* Senior members begin quitting.
* Transparency becomes infrequent.
* Teams are being dismantled.
* Hiring comes to a halt.
* Senior members begin quitting.
* Transparency becomes infrequent.
* Teams are being dismantled.
A few months later, I messaged the founder asking if he had an ETA for when the work hours would go back to normal. I got laid off after that.