Your wallet is a "Dogecoin Core" wallet.dat for Dogecoin based from your screenshot.
It's almost as if he knew this when he picked his username.And yeah, my username got a start from dogecoin launch back in the days.
Im just wondering how did those wallets mix up there

I have a few dogecoin wallets saved but the pc but Im quite sure that I have not used them anywhere near btc files.
Is there a software that could search older versions of a file or deleted ones? I guess my only chance is to try all of the ones that I can find with a software.