What's so strange is that they were at the forefront of Linux gaming with Unreal Tournament 2003. The game came with a bootable disc that would launch the game automatically through a Linux environment.

Maybe he's salty that it didn't pan out.

Ah yes, the company that bought Rocket League and then discontinued the Linux client and with a CEO vocally hates Linux.

He likes RHEL because that's what film studios use when they use Unreal Engine for VFX. It's a small but very lucrative market (and I think it's the main reason why Disney is exploring taking over Epic).