devtrackers.gg
I looked at that match to get an idea of everyone's connection and it looks like you were the only one that saw major packet loss and a high ping spike.
While having a wired connection with decent speeds is great, it doesn't exclude you from packet loss and ping spikes, which can be completely out of your and our control. It sucks but that's just the nature of the internet and packet routing.
You can message me or our Customer Care team if you would like to run some MTRs to servers in order to get a better idea of how your routing looks. If this was just a one-off issue, you may not know what caused the connectivity issues, but in case it happens again, I'd recommend that you try running an MTR.