Living In Bali 2025 with Budget of less than USD$1k pm. This guy demonstrates it, it is doable for foreigners. It seems to me he has not included the stay permit, other immigration cost.
The main takeaway is to avoid overpaying for a villa and simply stay in a guesthouse instead. Many digital nomads, pressed for time and unable to do thorough research, assume they’re getting a great deal on a villa because the price seems low compared to what they’d pay in Western countries.
Villa rentals in Bali are often overpriced when you consider the relatively low costs of construction, poor construction materials, low costs of maintenance, and staffing. With many people now building villas, it's only a matter of time before the market becomes saturated and the bubble bursts.
The reality is, not everyone needs daily access to a private courtyard, swimming pool, or views of rice fields and the beach, the one you will often get when renting a villa. If you want to sunbathe or swim, you can just head to a beach club, hotel pool, or the beach itself, many of which are inexpensive or free. You could just find a good spot in cafe and order drink, food, and you could stay there to work for hours.
As for food, eat at local warungs, there are reasonable number of hygienics warung, affordable, and popular among tourists.