DOOM (2016) writes to /var/log/syslog every frame - missing 'chroma_effect_files/ChainsawKill' (379720)

[discfailified]

Pardon my English. I didn't know where to post the report so if this is not the right place please point me in the right direction. The problem would impact devices with limited space for '/var/log' (maybe the SteamDeck, I don't own one)

Kubuntu 23.04 (up to date)
X11

what happened:

1. launched the game:

   DOOM (2016)
   App   ID: 379720
   Build ID: 2642713
   Proton 8.0

2. after multiple hour long session found gigabytes of duplicate log entries in /var/log/syslog [slimed down log sample generated mid game attached] syslog.txt

multiple repeatitions per second

indeed no 'ChainsawKill' in

/mnt/gaming_volume_4/STEAM_GAMES/steamapps/common/DOOM/base/chroma_effect_files/
\mnt\gaming_volume_4\STEAM_GAMES\steamapps\common\DOOM\base\chroma_effect_files\

chroma is mentioned here

896

I got it disabled in game settings

3. Verify integrity of game files: all 8123 files successfully validated

4. Download tab - Completed (4):

Steam Linux Runtime - Sniper Proton 8.0 Steamworks Common Redistributables DOOM

5. game launched again, navigated to game save slot selection screen and quit: [two slots with completed campaign] the same spam appeared

6. forced proton experimental, navigated to game save slot selection screen and quit: [two slots with completed campaign] the same spam appeared

repro:

1. Launch DOOM (2016) on linux
2. observe /var/log/syslog geting filled with spam about missing 'steamapps\common\DOOM\base\chroma_effect_files\ChainsawKill' even with verified game files

[silviucc]

I've hit this problem myself. Thought it was plasmashell (KDE) spamming my logs. Turns out Doom 2016 is a very naughty program.

What seems to have silenced it is using this DLL: https://github.com/Riesi/CChromaEditor

Does Doom 2016 behave like this on Windows?