The value of joypitchsensitivity cvar gets reset to 0 when loading a map or the save in the mod or official addon (e.g. Blue Shift), at least on Linux. It doesn't get reset in Half-Life. Mods and Blue Shift also don't exhibit this behavior on steam_legacy branch, so it has something to do with the anniversary update.
The value of
joypitchsensitivity
cvar gets reset to 0 when loading a map or the save in the mod or official addon (e.g. Blue Shift), at least on Linux. It doesn't get reset in Half-Life. Mods and Blue Shift also don't exhibit this behavior onsteam_legacy
branch, so it has something to do with the anniversary update.