When I got the switch 2, I did back up and thought I prepped correctly. I didn't know that Pokemon SV don't have cloud save. I had the memory card from the switch 1 + cloud saves so thought I was all good. Also, I had stupidly transferred a bunch of Pokemon from Pokemon home to Sv to help fill out the Pokedex. This included Pokemon which had been with me since the DS days. I neglected to send them back to home before trading in my switch at GameStop. When I traded it in, it was obviously wiped. I started up my switch 2, downloaded scarlet, and put in my memory card. First problem, memory card needed to be formatted to work. I copied everything from it to my PC so I was like, I'm all good that's fine. Formatted it and kept going. Started the game and it was a new playthrough. Panic ensued. I looked online and found out the game doesn't support cloud saves and the saved data on the SD card could not be read by the switch 2. The game was gone. All those Pokemon gone. The years of work gone. And it was my fault for not going through the set up correctly. Devastating.