I think electrum wallet is still good for this, I have been using it for over a year now, nothing happpened to the wallet.
Then we get to you and your theoretical $500... given the cost of a hardware wallet (or a 2nd pc for air-gapped setup)... that is going to cut into your holdings by a fair amount... in this situation, a software wallet like Electrum, that has been downloaded, verified and setup properly on a PC that isn't used for "dodgy" purposes (torrents/free porn/cracked software etc) is likely to work perfectly fine... as long as you pay attention to what you're doing.
However, you must then balance what that $500 means to you... What would the loss of that $500 mean to you? is that like a weeks wages? a months wages? your life savings? depending on your answer to that question, you can begin to assess what level of security you need to protect that asset.