I can’t find any history or stats of games I’ve played against the computer

You can't.
Those games aren't saved. You can save them if you want by downloading the pgn. You would have to save them on your device.


Good news. They have just added the ability to save those games into beta. (This is only currently available to those in the beta group.)

I’ve played the computer but I’ve played a solid amount of 10 min blitz and it doesn’t record those either
Good news. They have just added the ability to save those games into beta. (This is only currently available to those in the beta group.)
That doesn't cause them to factor into stats, though; is that right?
I wish chess.com had a tracker for practice stats so one has a gauge of when to level up and start facing tougher opponents.

Does playing the computer give you any rating (or change your rating)?
No, computer games are unrated. Generally, there's no clock as well, so while the bots will move fairly quickly, you can take as much time as you need to select your move. I think there might be ways to change the settings to activate the clock, but I'm pretty sure they are never rated, nor will they count in your stats or any other summary information (like "you've played this opening X times, etc").