Best practice with function parameters

Question

I have a question regarding the use of function parameters.

In the past, I always wrote down my code so that all the information needed by the function was passed as a parameter. That is, global parameters are not used.

However, looking at other people's code, functions without parameters seem to be the norm. I should note that they are intended for private functions of a class and that the values ​​that would be passed as parameters are actually private member variables for this class.

This leads to a more streamlined code, and I'm starting to lean towards this for private functions, but would like other people's views.

eg.

Start();  
Process();  
Stop();  

is tidier and more readable than:

ParamD = Start(paramA, ParamB, ParamC);  
Process(ParamA, ParamD);  
Stop(ParamC);  

It destroys encapsulation in terms of method, but not in terms of class.

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void Stop() {
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}

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