drivers – Ubuntu 18.04 Server missing Firewire Kernel Modules

i was researching some modules to blacklist and I found some discrepancy between the /boot/config_ and the actual available kernel modules on the system.

grep -i firewire /boot/config-4.15.0-112-generic

# IEEE 1394 (FireWire) support
CONFIG_FIREWIRE=m
CONFIG_FIREWIRE_OHCI=m
CONFIG_FIREWIRE_SBP2=m
CONFIG_FIREWIRE_NET=m
CONFIG_FIREWIRE_NOSY=m
# Supported FireWire (IEEE 1394) Adapters
CONFIG_SND_FIREWIRE=y
CONFIG_SND_FIREWIRE_LIB=m
CONFIG_SND_FIREWIRE_DIGI00X=m
CONFIG_SND_FIREWIRE_TASCAM=m
CONFIG_SND_FIREWIRE_MOTU=m
CONFIG_FIREWIRE_SERIAL=m

Since many of them should be installed as modules, I wanted to finde the modules.

 find /lib/ -name firewire
 find /lib/ | grep -i firewire
 find /lib/ | grep -i sbp2

All searches have zero results.

Can someone tell my why the config differs from the modules? Or am I making any mistakes here?