Pulling a full 15A is liable to trip a circuit breaker anyways, it’s extremely rare to need that kind of power from a single outlet. The outlets I use can handle up to 1200W, but the Prusa Mk4 has a 240W power supply, so there’s plenty of power to spare. I don’t imagine even a Bambu would be pulling a full 1200W.
The product I’m using: https://www.amazon.com/gp/product/B07SQGG8Z7/
Personally I don’t think Prusa is really as far behind as some people claim. A lot of printers on the market are still single material bed slingers, and it’s not like Prusa doesn’t have a Core XY, it’s just a large and expensive machine (Prusa XL).
Considering they have been in the market a long time and their printers are known to be reliable workhorses, I went with the Mk4.