Online games are ‘live’. Games like TF2, Fortnight, PUBG, Apex Legends, etc, all have players playing at the same time. These games are played in real-time with mere millisecond differences. Packet loss is something that happens on your own network so no matter how low the ping on a server is, packet loss will nullify it if it’s high. Learn how to find packet loss https://www.addictivetips.com/windows-tips/packet-loss-in-games/