Starting from April 2017, FarmVille: Harvest Swap had a feature called "My Pet" which allowed you to have a pet as shown on this YouTube screenshot from 2019 that I was able to find. You could interact with it, name it, you had different kinds of pets available to buy, accessories, food and toys for it. When in mood, Birdie would give you a boost during the gameplay. Now, I played FarmVille: Harvest Swap around 2018 and remember having that charming feature but now when you install it from Uptodown or APKPure, you don't have it. It was likely tied to some sort of flagging or verification from now defunct Zynga servers. But I'm pretty sure you could access it today, as you didn't need the Internet connection to interact with it and if you were verified before 2020 when their servers reportedly shut down, you would've still have it. There's another thing to consider. Before selling my phone couple of years ago, I have saved two data folders from Android/data related to the game. They successfully applied to a fresh install. I have my old progression, as well as in-game currencies (coins and diamonds) restored. However, "My Pet" feature hasn't returned. Given that even in-game currency was stored locally, it's likely that the "My Pet" game mechanics was also stored locally, just that you need Zynga servers to give it a pass. Or the data/data hidden folder contents (that I haven't saved before selling the phone). Or if you mod that flag somewhere in the data binaries. Or if you have a fully wrapped up .ab backup file of the app with the feature unlocked.Let's try finding it. It would be a shame if such a neat feature really turns into the lost media.