system
A chat on subreddit /r/pcmasterrace
human
Everyone complaining about alcohol but alcohol is fine as long as it’s isopropyl. Might have been the cloth you used.  Might just be some residue streaking. I like to Use slightly damp with isopropyl alcohol microfiber cloth followed quickly behind with a dry microfiber cloth to remove any of the streaks or residue that was left behind.
gpt
It was surgical spirit ethanol 90% methanol 5%