Shoot, I didn't even let the device create the wallet for me since I restored an existing wallet, all while offline. I do have one disclaimer though, I have only sent bitcoin to it and I have not used the wallet to send any bitcoin. I guess if all of my bitcoin disappears after I send some, then I'll know this wallet isn't any good. The only way that I could think that could happen though, is when I'm am scanning the QR code on the wallet with the Safepal app on my phone and it somehow transmits my seedphrase/private keys through the QR code to the app and sends it to hacker.
But shouldn't I be able to scan the QR code with a different device to see what it is transmitting and be able to see if it is transmitting my seedphrase?
You could. You can decode QR codes easily to see what information is being communicated. However, being able to understand what the string of letter means is a whole other issue altogether. The seeds could be discretely obfuscated and you wouldn't be able to tell without close inspection.
Being extra careful with your wallet is sometimes not enough; addresses/seeds being generated could still be intentionally weakened for others to steal. Doubt it would happen very often but it has happened before.