Adobe won't make a Photoshop port, unless it is 100% obvious to them, that they are leaving more money on the table by not porting it than is the cost of porting and support.
Which may suck for you, if your business or job requires Photoshop right now. You aren't going to switch to Linux then, because you will get Photoshop and whatever OS it requires in the state it is today - which decreases the motivation for Adobe from previous paragraph.
And certainly no option for a business, but rarely for your average Joe, either. It is often hit and miss.
Like I have said countless times, a lot of users are bound to using either Windows or Mac because of a few applications. There is Microsoft Office (cloud versions are not good enough). Visual Studio. Adobe products. Avid. Ableton. Apple’s own software (Logic, Final Cut).
Where there even is alternatives, they are just not good enough.
Where Linux has gotten some support, is from the VFX industry, especially from Autodesk. You can use Maya and Nuke and Linux. Actually, almost all VFX companies use Linux in their shop.
Despite saying this, this is a fairly good option and I applaud Wine for its existence and the monumental undertaking they undertook (poor grammar, sorry).
