In most cases, front load washing machines are designed to be connected to a water supply through plumbing, and they do not come with a manual fill option from a bucket. They rely on the water supply pressure to fill the drum for washing.
That said, some high-end or specialized front load washing machines might have a feature that allows you to manually fill the washing machine drum using a bucket. This feature could be useful in situations where a continuous water supply is not available, or for specific washing purposes.
If you are considering using a front load washing machine with a bucket, it's crucial to consult the user manual or contact the manufacturer directly to see if your specific model supports this function. Attempting to modify the washing machine or use it in a way that is not intended by the manufacturer could void your warranty or cause damage to the appliance.