It's not a surprise that this money is being spent here, right?Answering my own question
Seems like the Silver Lake investment was for the Manchester Arena
This would be 485 GBP out of 650 raised. FT reported that this money was intended to use for infrastructure projects including NYCFC's stadium. Not that all of the money was going to be used for it.
"CFG intends to use the money to fund infrastructure projects such as a new stadium for its Major League Soccer franchise New York City FC "
There were then some other outlets that took FT's article and regurgitated their reporting but saying that the whole $650m was for NYCFC's stadium, which was completely inaccurate based on what FT wrote.
I've been told separately that part of the money of the debt offering was for the new stadium. I wasn't provided any actual numbers or percentages of it.