I mainly use PI, and Photoshop for post (color fine adjustements, stars saturation…..etc), although I started with Siril which is also a really efficient piece of software I agree. PI is great, as PS also is. Not the same goal exactly.
I gave APP a try, but I have to go deeper into it (seems really great as well).
Almost everything is already said in this thread so far.
I use add-ons, such as BX, NX, SX or GraXpert, and it's true that they are sort of game changers (Starnet2 does a really good job though), for the already detailed reasons told above.
But as it was also said, something which starts to concern me, is the way AI seems starts leading the game to. Time passing, the more AI will do, the less astrophotographers will have to do (by themselves).
Seeing the speed it grows up these last few weeks/months/few years, I'm thinking about the next 10 coming years.
I cannot prevent myself to think that there is a possibility to really lose personnal creativity.
Indeed, not so far ago, doing a deconvolution was a skills game, and the quality of an image was -not only but it was- linked to these sort of difficult skills to get.
I agree that making things simplier is time/effort saving, which is very pleasant in astro-processing.
But at the end, if everything is managed by AI, everything will be standardized and gathered around this simplicity, which makes, ironically, the success of AI nowadays.
A sort of sofware Fordism.
Talking about color palettes these days, sometimes it seems to end more or less the same for an increasing (not all of course) number of images. Maybe just my feeling I don't know.
That being said, I really don't want to be pessimistic, things can hopefully take another way. Time will tell.
Its was just a thought to share

Laurent