4. I then clicked on private key instead. I then copied and pasted the private key and when i did this, it seemed to go to my wallet. So basically assuming you don't have a ledger nano s or trezor, then its basically keystore file or private key right? Which one of these 2 do most people use? The thing is i don't have a problem with just copy and pasting my private key to it and accessing it this way. But i assume keystore file is what most ppl do?
Basically the keystore is a 'safer' way to use your private key, since any thief would require both your keystore file and your password, instead of just your private key - so you're more protected against key logging or copy/paste hijacking and similar threats. You could just use the private key if that's what you prefer, it will have exactly the same end effect. If you are using this wallet frequently on an always online PC, then more security is always advisable. On the other hand if you are using it infrequently on a mostly offline PC, you may be comfortable just using the private key.