What are SFA files and how does it work on my iPhone 16 Pro Max?

No documentation is provided for the log files. Sometimes you can gain a little insight by tapping on them, but the data they provide are useless to the user. They are beneficial for Apple Engineers when data is requested from your device after opening a support ticket for an issue you are having. They also use special decoding software to make sense of the data that pertains to the reported issue.

Here is just another example of those same logs:

Nothing you need to worry about.

As mentioned there is absolutely no way to know what that means exactly unless you are an Apple Engineer.

Also, no reason to think anything is amiss in those logs.

Reading logs is just a pointless endeavor and will cause undue stress and angst.

There is no point in looking through analytics; there is nothing you can learn from them without an iOS data dictionary, and that is only available to Apple employees working in development areas. And even they don’t actually look at logs; they process them with an app that generates a human readable report, because they don’t want to slog through thousands of lines of gibberish either.