Mod Version: 1.19.2-5.2.1
Minecraft Version: 1.19.2
Forge Version: 43.2.0
No other mods loaded.

Reproducible by creating a basic plane, moving the plane around with WASD, and then shooting. Arrows aren't going in the direction expected given the player's camera aim.

1st image shows the player's aim. 2nd image shows where the arrow actually goes.

If it matters, this also happens with helicopters, with or without the shooter addon placed on the plane, and with amiable weapons from other mods when installed (cgm). The bug is not present in 1.16.5, so I assume this has something to do with the shooter update and the camera getting offset by plane movement.

This is more than just arrows - the player is not facing the correct direction when in first person. This can be seen with things like compasses.