Re: How do I set up a new pixel 3 without pullingl the sim card from my samsung galaxy s5. My wife w
Any app you purchased and installed from the Play Store should also be available to install on the Pixel 3 through the Play Store, as long as you're using the same Google account. The apps still have to be available in the Play Store, though (since sometimes old apps might get removed for various reasons), and they have to be compatible with the phone. Apps that came preinstalled on the S5 won't necessarily be able to port over, though -- if they're Samsung apps, or apps you had to install through the Galaxy Apps Store, chances are they won't be available for non-Samsung phones.
Transferring the actual app user data can be trickier, because installing the app from the Play Store won't necessarily bring over all of the user data. It will if the app syncs your data to a cloud server, but if the app data is only saved locally to the phone, that's more of a problem. Google's own backup service might backup important data to your Google Drive, but not all apps take advantage of this. Some apps have pretty obvious data directories, so another option is to copy that directory to your computer hard drive, then copy that to the new phone, and hope the newly installed app will recognize that data.