What is a paper wallet?

[o_e_l_e_o]

While I haven't thought about spending yet, I'll probably sweep the entire amount out of my wallet at once and won't use that wallet again.

A good idea in general, but doing so will obviously reveal your entire stack since you are combining all the inputs in a single transaction.

However they are only different visual displays of your wallet private key.

No, they aren't. As we've discussed above there are fundamental differences between a single private key paper wallet and a seed phrase paper wallet.

For private key, it is more complicated but also means private key is a better secured method to back up your wallet.

You can brute force missing private key characters just as easily as you can brute force missing seed phrase words. In fact, it's quicker to do this since you dont have to go through all the rounds of PBKDF2 and multiple child key derivations.

[Dunamisx]

It is also very important to run a malware check on the system and also scan using antivirus app so as to be sure for a maximum security and safety that might be encountered during the process of generating both the public and private keys and the device used must be also secured while the means of handling the keys generated must be maintained with care against any external constraint or damage which may result to denied access of the user to the wallet.

[o_e_l_e_o]

It is also very important to run a malware check on the system and also scan using antivirus app so as to be sure for a maximum security and safety that might be encountered during the process of generating both the public and private keys

If you are doing things properly, then this is counter productive.

For maximum security, your paper wallet should be generated on an airgapped device running a live OS, preferably a device without a hard drive, as I said above. Given that you are booting to a live OS on a device with no hard drive, then there is no possibility of having malware (short of some very rare BIOS malware or if you have downloaded a sketchy live OS). Starting to import additional programs to your live OS such as malware scanners or antivirus software is just introducing more risks, not fewer.