Thank you for your answer.
Please tell me why you need to connect the two outputs.
The following is just my view.
Even though it is 3.3V output, there is a voltage difference between the outputs of the two regulators. A large current may flow through the regulator depending on the voltage difference and the magnitude of the output impedance. Of course, I think the regulator is designed to limit the current, but I don’t think it is supposed to be used to connect the outputs. Isn’t there a very high possibility of failure?
Below is a link on this subject.
The regulator of my first XEB was destroyed 10 minutes after the start of use. The second one is used without the 3.3V output pin header of XIAO to avoid destruction.
Please tell me your opinion.