Has my new MacBook Pro been hacked?

Nope, those are normal logs that are constantly being produced by the OS. They will have no meaning to you and you certainly are not able to troubleshoot any issue by looking through those logs. They are useful to Apple Engineers who may request a log after a Support Ticket has been opened for a problem. If they do request a log, they use special decoding software to evaluate the issue that they are looking to solve.

Hundreds, if not thousands, of those logs are produced every day and automatically deleted after a preset amount of time so they do not fill up your hard drive.

Nothing there indicates any hack.

Logs won't indicate hacks. Stop looking any logs you don't understand. Logs show the regular events of the Mac and will continuously get added to as the Mac is under operation. It's perfectly normal to have a lot of logs.

Unless you are a high profile target, like a journalist, politician, public figure or diplomat you are just simply not worth the effort, expense, equipment and expertise required to hack a Mac remotely.

No problem. Another confusing aspect of reading log files is that in many cases errors are expected and the engineer that logged the message is actually confirming that the code is working correctly by producing an error. In the old days of early computing, where computers ran much slower and did not have much space to store logs, they were more judicious in what was logged and an error was something that could be addressed, but that is no longer the case.

As an abstract example, consider if you were traveling from point A to point B and there is only one path you can take. A computer is going to evaluate every option to travel along your journey and if one path leads to a dead end, that would be noted as a failure or error, and would return to the next path. Eventually you will get to point B, but there will be many errors on the way.