quartz hollow
The recent update for the 64 Chromium branch causes the hud_deathnotice_time command to not work on game startup.
Whenever you change the hud_deathnotice_time command to something like 0 so you can disable the death notices it just gets reset back to 6. This is definitely caused by the recent update as it does not happen in 32 bit and this issue only started happening after the update.
fluid skiff
You're not supposed to be able to modify this on the client which means it will prob be broken on all branches in a future update. https://github.com/Facepunch/garrysmod/blob/359d728fb470bde7bcba5c8f10d2206f0b52e800/garrysmod/gamemodes/base/gamemode/cl_deathnotice.lua#L2
Try this instead hook.Add("AddDeathNotice", "hide_death_notices", function() return false end)
