https://launcher.epicgames.com/
From FAQ:
What should I know about Linux support?
The new Epic Games Launcher runs natively on Linux, but many games are Windows-only builds and may need a compatibility layer. Check each game’s Linux compatibility before installing.
We support Ubuntu 22.04 LTS or newer, Fedora 43 or newer, and Debian 12 or newer. Other distributions may work but aren’t officially tested or supported.
Use the Send feedback button in the launcher to report issues.
https://onlineservices.epicgames.com/news/introducing-easy-anti-cheat-linux-v2
Also epic is rebuilding Easy Anti-Cheat for Linux (EAC Linux v2) to deliver near-Windows-level protection using signed kernels, Secure Boot, TPM 2.0, and other existing Linux security features starting with a Fortnite, so more multiplayer games can finally support the platform without enabling widespread cheating.
Yes, and - of course - the launcher is vibe-coded too. They even proudly say so on the announcement page:
Holy shit! That’s a first for me. I’m not as anti as I once was, but vibe coding is just irresponsible. Do they have the same definition of it as I have?
How is anyone but you supposed to know that unless you define yours?
Not even looking at the code, but only seeing it kinda works at a functional level, usually only superficially.