I haven't tried any of those, but I think that's most probably not going to work. Currently I am playing StarCraft Remastered and StarCraft II thanks to PlayOnLinux, so its not a scam, but I think you need to provide the install software. I had paid for those, so no problem for me. All I had to do was follow some instructions (because I needed to get the latest wine-staging version which at that moment was 2.17 or so I think)
Remember that PlayOnLinux relies on Wine to work.
Here's the Wine status page for photoshop
https://appdb.winehq.org/objectManager.php?sClass=version&iId=25607
It's just silver, not even gold so I would not expect much. I would rather use any of the fine open source image editors available.
You can search for alternatives here:
http://alternativeto.net/
I can mention some (some may fit more or less or be more specialized in a certain area) :
GIMP
Inkscape (good for vector graphics)
Krita
Mypaint
Darktable
Pinta
If you still want to use Photoshop you can try installing it, but I guess you will have to search the correct exe within the virtual windows drive and launch it to be able to use it. (open the configuration window, go to the miscellaneous tab and press the "run exe file in this virtual drive" )
I guess that should work.
Freedom is the right of all sentient beings.