Be careful don't do this first
I heard that someone before that his old wallet file or wallet.dat become corrupted after upgraded it from oldest Bitcoin-qt to newest bitcoin core.
If you don't want it to happen to you then make sure to make a backup of your wallet file first or much better dump them all into private keys while waiting in your hardware wallet. You can just sweep them once you set up your hardware wallet.
there is a "received with" address starting with 1QC I don't think this really helps though.
So, some progress, any thoughts for next steps?
If you see the received address then you can check it if it still has a BTC balance you can use some explorer like
https://blockchair.com and paste the address that starts with 1QC then submit it should show the transaction history and the current balance.