In case you also wanted any feedback from non-wireless/vpn connections:
Using a wired non-VPN UK based internet connection that at the time of testing was running around 250 mbps, my first 1v1 game started fine, the next 3 all loaded the FA exe but resulted in a connection failure (despite at least one of them showing 2/2 connected - I didnt have the loading screen up for the other failures to see if they also reached 2/2). Of these 3 failures, 1 resulted in an error to me saying I was the cause.
This was done around the time of posting (i.e. when FAF is busier).
Previously (i.e. before the DDOS issues) connection issues in 1v1 games were rare for me (they'd be rare in 3v3s as well).
client.log ice-adapter.log advanced-ice-adapter.log
Edit: Just had another game attempt to start and stay stuck for a while at the 2/2 connected loading screen, so that makes 1 success out of 5 attempts.