One thing I don’t fully understand is whether data is cached locally or whether I would have to handle that myself (for example if I have to read a configuration file)? And if it is cached, how can I control how often it refreshes?
It should be possible to use (2) and (3) for a better performance but might need changes to the underlying fuse library they use to expose those options.
You'd have to use your own cache otherwise. IME the OS-level page cache is actually quite effective at caching reads and seems to work out of the box with gcsfuse.
