Originally posted by Conan Rorschach:

How do I save to drive then?

not sure per-game, but there is a global steam setting to kill it for all games which I use. I don't like the cloud generally, and specifically its a performance hit.
Valheim, you are copying your files over the (slower than your flash drive) web and increasing the lag time during saves. Other game hide it better. My main world is almost 2 years in with close to a dozen bases now and still < 5 sec local save.