And play through complete! Thanks @Brave and @Gordon for the “little” bit of help on the final boss. Once I had my tactics sorted it was something of a breeze. It turns out it was crucial for me to barely survive the first phase and then play dead for the vast majority of second much more difficult phase. Distracting the boss with my air of pathetic-ness and ineptitude, leaving @Brave and @Gordon to finish him off. 😉
Second phase is clearly well up there with the very top annoying, unnecessarily difficult and frustrating boss fights of all time. Dare I say worse than the butterflies of Remnant 1.