The only link I can find is about the 50 or so they arrested downtown. But, I was working close by when it went down out on I-35. They were loading them up like cattle. What are you watching for news? Dallas arrested 185 I think the same weekend.
https://www.texastribune.org/2020/06/02/dallas-protests-texas-eric-johnson/
I watch 4 5 8 and 11
If they arrested over 600 it would have been news for several days and show up now in a search
There was plenty of coverage on the people arrested in Dallas