People keep posting this shit about ghidra because shills wanted to throw you off of using pixelknot.
Ghidra is not and has never been a stego tool. It is a tool for reverse engineering programs into source code. You know, so you can see exactly how a virus on your computer is sending you to porn sites. (it was a virus, right?)
But seriously, if you enjoy spending days to weeks digging through code to find exactly where firefox is censoring sites you go to, this is the program for you.