The Bambu printers are quite locked down. So you are only getting the functionality they want you to have. So the Core One, (Marlin) or Qidi, (Mainsail and klipper), might be your best choice. Crealty seems to be improving with their new models. But their past history makes me very leery yet. I lean to Prusa because I’ve owned one for 5 years now and they still support it. Customer support is valuable to me and worth the extra cost in the purchase price.