I hear you, personally grabbing the charger for overnight stays hasn't been a problem but there are a few compact/inexpensive third-party dongles that are like the official charging cable but without the cable[0]. They can be stay in a car, laptop bag, etc. and charge the watch from an iPhone or another usb-c power source.
[0] Random example for illustration https://www.amazon.com/dp/B0CKV9JBR4