I need to design a device that generates up to 25 independent PWM outputs, and the four normal timers and two advanced timers of the stm32f103vc can generate 24 independent PWM outputs, so I can see if you can use the advanced timer Of the complementary PWM channels used as independent PWM outputs? For example, TIM1 CH1 and CH1N output can be complementary interference? Whether they can produce independent PWM outputs？ Thank you！
Channels for complementary interface cannot produce independent outputs. So CHxN can't be used as standalone output.
You can verify with number of output channel (OC) registers your advanced timer has (TIM1 or TIM8)
Keep in mind, that with four normal and 2 advanced timers you can't get your result, because they are not independent. All channels on one timer have the same frequency. If this is what you want, then you have independent channels, otherwise you don't have.