Is it possible to find these data somewhere on the sdcard if i pull it out and insert it in pc through SD card reader? If it is possible where can I find it?
If you mean the files that the developers themselves saved somewhere (maybe locally), then yes. But it's up to them where it is.
If you mean local or roaming data, like files or settings, that is provided by UWP API, then no. It's saved somewhere in the system's directory made for this app (and users).
More about it is in documentation
These are the main types of app data:
If you're looking for the app's folder (provided for every UWP app) then it's here:
%LocalAppData%\Packages\
Though it's messy. There are files in there in every folder that represent above folder structure. I don't think they're encrypted, and you could read these files (e.g. through the API itself) though I can't tell for sure.