@finnce - you can always check status with the dumped BIOS or dumped FD, I am not sure what you mean by you can’t check it by dumping
@gloobox - I’ve never used RU, but I can tell you from seeing others use and try to use it, what it shows you is not always the correct and proper locations to edit like you would if using grub / setup_var
Rest of your comments, I can’t comment back on, no experience with this tool.