Out of curiosity of I use a hardware wallet like ledger nano s via electrum desktop app that is has not had PGP verification and worse case scenario no one can technically access my bitcoin that's on my hardware wallet.
It'd simply be the pain in the ass of removing the software that's corrupted on the computer it was used on if I'm not mistaken?
Yes, by design, your private keys are contained in your Ledger Nano S.
The created Electrum wallet with it only contains its "
extended public key" which can only derive public keys.
However, an unverified fake Electrum app may trick you to send to a different address or anything that'll change the transaction's data before you sign it with your hardware wallet.
That's still dangerous if you do not pay attention during verification of the address and amount shown in your Ledger's screen.