This is pretty meaningless actually. It's 'just another' exchange in the US - there are already plenty, you can trade any stock you want on any exchange you want.
There may be other (laxist) rules for primary listing on that exchange, but other than that, it doesn't add any value - there will probably be close to 0 volume traded on it. And the servers will probably run in the same data center that current NYSE.
If the servers are actually located in Texas, and there is some volume traded, then it could get interesting as in the US, there are rules about 'best execution' that restricts how and where brokers can trade.
I'm also confused by the confusion. My German broker shows me something like ten exchanges (all in Germany) in the app where I can trade securities. I always thought it was weird that the US, being by far the biggest player in the market, only had one exchange. (Even though I just learned in this thread that there are actually multiple already.)
The US always had the same currency, so shares are almost by design fungible between markets. Also the rise of Nasdaq made for a quick transition to broker-dealer (market maker driven) markets, which combined with fungible shares and NBBO lead to a centralisation of exchanges early on.
On the contrary, Europe had historically one market of primary listing per country/currency, and it took a long time to see the emergence of MTFs centralizing books in a single place. Don't be fooled though, the vast majority of European liquidity is now on CBOE (the leading MTF) and LSE (the leading primary market).
There are numerous exchanges in the US. The trading is mostly done on NYSE / NASDAQ although some others do trade a meaningful volume.
What happens when you click in your app on 'buy' or 'sell' button is a different story. Mostly, it will never trade on an exchange actually. Especially in the US. Look up 'payment for order flow' if you're interested in it.
Short version is - retail trades don't have any 'alpha' - you can just collect the spread executing it. And companies are willing to pay for that.
This is pretty meaningless actually. It's 'just another' exchange in the US - there are already plenty, you can trade any stock you want on any exchange you want. There may be other (laxist) rules for primary listing on that exchange, but other than that, it doesn't add any value - there will probably be close to 0 volume traded on it. And the servers will probably run in the same data center that current NYSE.
If the servers are actually located in Texas, and there is some volume traded, then it could get interesting as in the US, there are rules about 'best execution' that restricts how and where brokers can trade.