How do we search for the earliest versions and wallets associated with BTC?
Some latest versions of Bitcoin Core wallet
https://bitcoincore.org/en/releases/You can find more older wallet versions from topic history of
satoshi, the founder of Bitcoin and this forum.
If I could find my earlier wallets, I'm sure I could "login" into them.
It is very big IF and it does not make sense.
You only can talk about it if you found your old wallets (if you actually have old wallets). Don't buy old wallet files from any source because you will be scammed.