I am going through my first steps in Linux RCE, and before I go in a wild geese chase, I would like to ask more experienced people the viability of my approach.

I have a commercial app that is available for both Win and Linux plataforms.

I have much more experience dealing with Win RCE, so I thought analysing the protection in Win would give me the heads up when dealing with the protection in Linux.

So far, I have not made much progress, but in your opinion and experience,
How common/likely it is that the protection location, code, and implementation would be similar between the two plataforms?

Or am I just working twice here?