I see this note in the docs of TarFS of pyfilesystem
Close the filesystem and release any resources.
It is important to call this method when you have finished working with the filesystem. Some filesystems may not finalize changes until they are closed (archives for example). You may call this method explicitly (it is safe to call close multiple times), or you can use the filesystem as a context manager to automatically close.
Is that OK to not close the FS if I do read-only operations? For example:
archive = io.BytesIO(get_my_tar_as_bytes())
read_stuff_from_fs(TarFS(archive))