Thanks for reporting this bug. We will get it fixed to switch to the default speaker when preset save is cancelled.
At preset there is no option to disable the prompt to save the preset if the equalizer settings are changed. We can consider adding it based on demand.
it really needs to be disabled. Because if you change the patterns, he will also ask every time and gets in the way, creating unnecessary movements. add this to the settings and let the user choose what is more convenient for them.