Yes, it works. But if you updated it later(through popup) message, and changed your game in the newer version, you will need to update it every time when you open the app.
And i really do not know how to delete and download the C3 again. And I assume if I will do it, will need to update again all plugins, set up UI etc.
About memory issues, yes, it is because I'm opening other tabs too, it is part of my work. And it is chrome issues. But I'm telling you about it, bad chrome memory handling makes issues in the C3 too.
You can see here how long scenes are loading youtu.be/biwDXyb1JBA it is happening very often, every time when chrome goes out of memory or something like this, it is not super critical but just annoying because im doing this operation thousands of times per day.