There is a SFX demo, which enables it for 0.1 content, you have to enable it to play with it. My most important concern is the animation audio or "lewd" sounds, as I said, it's a lot of work, but I'm not sure it's needed THAT much, so I'm not prioritizing it at the moment. Making usual sfx with sounds like, opening doors, for example, or other small details when it's needed is not a big deal. And I won't going to insert something that is disgusting to hear of course, I can't imagine why would you do that to the players, some people don't like most sounds even, so of course it's already in the separate channel, just as lewd sounds are in the separate channel as well.
And surely, there will be 0.10 at some point and more. You can guess how many chapters there will be, by the names of the first two :)
In theory, it should work, but I never had a chromebook, so can't say for sure. Since you said you uninstalled the game, and installed it again, it's not a problem that described in the instruction above. To me, it sounds like the app doesn't have the permissions for the save data, I'd check that. But if that's not the case, I have no idea what it can be yet. Maybe there are some guides about Renpy games on chromebooks, but I haven't found any.
