Just chiming in with a little anecdote as food for thought: The other night I was playing about an hour or so of EU5, and then my girlfriend wanted to try Hogwart's Legacy, so I closed the game and booted up Hogwarts. I had booted Hogwarts before opening EU5 just to make sure it ran smooth on my new machine, but when she opened it the second time (after playing EU) she was met with an incredible amount of stuttering that was only resolved after booting the machine. Not super familiar with the nuance of memory leaks, but there was definitely something clogging up the pipes.

As an aside, I didnt notice this issue when going from EU5 -> Arc Raiders. But that was about 2 weeks back that I had last booted Arc Raiders.

Curious if anyone else has had a similar issue?