When using MobEffects with Shoulder Surfing Reloaded's over-the-shoulder style third person camera, the breath effect comes from the center of the screen instead of from the player model. Very minor, for now I've just turned off the breath effect in the pack that I'm working on -- thought I'd give you a heads up, either way.

To reproduce, install:
https://www.curseforge.com/minecraft/mc-mods/shoulder-surfing-reloaded

Then set these values in shouldersurfing.toml (by default it doesn't do over the shoulder for some reason):
rotation_offset = -30.0
replace_default_perspective = true
default_perspective = "SHOULDER_SURFING"

Thanks a ton for this series of mods, by the way. The immersion they offer is incredible! Easily in my top 10 😄

Where do footprints show up?

They show up on the ground correctly.

That is weird. Both effects are generated relative to the player location. Only difference is that the breath effect is rendered using the Minecraft steam cloud particle, and the footstep is render by MobEffects using a different system.