Furthermore, it provides cloud-enabled OS support for development, and QNX OS 8.0, with its advanced microkernel architecture, is designed to support emerging CPU architectures such as RISC-V.

When asked about the challenged of making the Switch 2 version, Tremblay mentioned this: Cyberpunk is built for x86 with old PC architecture. So this from the beginning was completely different.

Despite being an open-source operating system, Fuchsia OS isn't built on the Linux kernel. Instead, it's built based on Zircon, which is a microkernel developed from scratch by Google.