No you are wrong, the difference here is that my game have never been in early access, the game here was completed, I just added more stuff (dlc)
On steam I am selling a remake.
The issue you have is that you keep thinking that I am selling the same piece of software but no, the game on itch is finished and I am selling another one.
And besides that, itch and steam are different platforms I if I buy a game on steam I don't have the access to it on ps, xbox, epic store too or even here on itch, I only have it on steam and it is the same for the others.