Data collection in this game is as follows.
Every time you view the main menu, both on game start and if you return to it in game, the game sends its version number to ILLGAMES, primarily so that it can check if there's a new ToS available, if it is found to be updated, it shows the ToS Screen.
This in and off itself is not a major problem, but on the back end, that information could be logged alongside IP Address, so combined with a general distrust of illusion, that makes me at least uneasy.
This will be up to the individual just how uneasy it makes them, but my repacks, and HF patch for that matter, blocks the game from sending anything to ILLGAMES.
I have a pack with just said blocking:
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Do note that if the game doesn't start, you may need
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as well (just put that in the \BepInEx\patchers folder. after that, keep in mind, the game may take a min to boot on first attempt, as it needs to read the IL2CPP metadata