Oh dear, a can of worms is appearing!
It might seem that different processing software treats differing formats differently (I hope that makes sense).
So, back to basics.
I look at the images below (deep space), don't we all?
Those guys & girls know what they are doing
There seems a common theme...
Pixinsight and Photoshop.
Added: DSS, Auto Stakkert & Registax can be added to the mix.
And what ever works for you (covering bases) :-)