But why does it say that i can enter linux developer mode or something in settings?

High Confidence (75%)
Why does Genymotion say Chrome OS can enter Linux developer mode, yet it is not supported for Genymotion Desktop?

❌ NO. Enabling Linux (Crostini) on a Chromebook only provides a Debian‑based container, which is not one of the officially supported Linux distributions for Genymotion Desktop. Genymotion Desktop runs only on Ubuntu LTS, Fedora Workstation, or Debian Stable running directly on hardware, not inside Chrome OS’s Linux container.

What are Genymotion Desktop requirements? – lists supported Linux distributions and notes that other environments are unsupported. Which Linux distributions are officially supported? – confirms only Ubuntu LTS, Debian Stable, and Fedora Workstation receive support.

Would you be able to use a Windows, macOS, or a supported Linux PC for testing your APKs, or are you looking for a cloud‑based Genymotion solution?