Having dual booted Fedora and Ubuntu before, I will point out that they will both install Grub in the EFI under separate folders and do battle for first boot dominance every time there’s a kernel update.

What OP was saying is that updating Linux may also change your bootloader to the one that Linux expects you to be using. It’s better since it will detect windows and give you the option of booting into it, but it’ll still replace what’s being used (according to OP).