Using /boot/config.txt for config_file

[c4mz]

class I2CUnifiedLinux(I2CBase):
def init(self, bus=None, suppress_warnings=True):
if suppress_warnings == False:
with open('/boot/config.txt') as config_file:
if 'dtparam=i2c_arm=on' in config_file.read():
pass
else:
print('I2C is not enabled. To enable' + setupi2c_str)
config_file.close()
with open('/boot/config.txt') as config_file:
if 'dtparam=i2c_arm_baudrate=400000' in config_file.read():
pass
else:
print('Slow baudrate detected. If glitching occurs' + setupi2c_str)
config_file.close()
if bus is None:
bus = 1
self.i2c = SMBus(bus)

Why is it only using /boot/config.txt and not /boot/firmware/config.txt? Shouldn't it do the same logic that i2c-setup.sh does? I'm getting errors using bookworm.