That's one thing...
- Acer writes nothing about it (unlike, for example, the Helios 500, where it is clearly written).
- In the Acer forum it was said that the entire series only has 60Hz: https://community.acer.com/en/discussion/535440/how-many-hertz-is-the-acer-predator-helios-300-screen
- About 2/3 of the reviews say 144Hz, also Digitec, although it's more likely to be the same standard description from Acer. The other reviews say 60Hz for the same model...
Personally, I don't trust any information that doesn't come directly from the manufacturer (especially when it seems so unclear), as I've often had problems with incorrect product descriptions.
Unfortunately, your question is not directly answered now, only one of the owners of the device or Acer directly can help you. Have you already asked Acer support?
I hope the answer helped you a little anyway.
Hello HaDeuber
I have to smile because I also use the computer for stock market simulation. I am totally satisfied with it. That's all. :)
Question: I would be curious to know how you trade on the stock exchange, what view you follow. Is it possible to contact you privately?
LG: Csaba