Screen flickering and system crash playing Doom Eternal

Screen flickering and complete system crash when playing games on Steam (Doom Eternal). This has never happened before in 25 years of Linux use. X crashes - can usually recover it, but this is a crash followed by a reboot??

Anyone else seeing this?

  Host: nick-b450aoruselite Kernel: 6.2.9-1-MANJARO arch: x86_64 bits: 64
    Desktop: KDE Plasma v: 5.27.3 Distro: Manjaro Linux
  Type: Desktop Mobo: Gigabyte model: B450 AORUS ELITE
    serial: <superuser required> BIOS: American Megatrends LLC. v: F65a
    date: 02/09/2023
  Info: 12-core AMD Ryzen 9 5900X [MT MCP] speed (MHz): avg: 2451
    min/max: 2200/4950
  Device-1: NVIDIA TU104 [GeForce RTX 2070 SUPER] driver: nvidia v: 530.41.03
  Display: x11 server: X.Org v: 21.1.8 driver: X: loaded: nvidia gpu: nvidia
    resolution: 2560x1440
  API: OpenGL v: 4.6.0 NVIDIA 530.41.03 renderer: NVIDIA GeForce RTX 2070
  Device-1: Realtek RTL8111/8168/8411 PCI Express Gigabit Ethernet
    driver: r8169
  Device-2: Intel Wireless 8260 driver: iwlwifi
  Device-3: Intel Bluetooth wireless interface type: USB driver: btusb
  Local Storage: total: 4.55 TiB used: 824.02 GiB (17.7%)
  Processes: 435 Uptime: 1h 15m Memory: 31.27 GiB used: 6.07 GiB (19.4%)
  Shell: Zsh inxi: 3.3.26

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