"Freestyle dining" is not even having to make reservations for the MDR!! Go whenever you're ready to eat.
Yes - https://www.ncl.com/ca/en/cruise-faq/when-can-i-pre-book-entertainment
Possibly, but not 100%. Also be aware that SIX is on current dailies but the last cruise on the Bliss with that show will be in Feb.
I'm not sure, have you tried calling and asking? What is your goal for linking? Once you dine together once the hosts can see and ask if the other cabin is with you as well, this happened to me in 2022 and I didn't even plan the cruise with the people I dined with!
ALL specialty venues are included.
Same menu, but limited to number of items/courses (can get up to four - one salad, one app/soup, one entree, one dessert). Some items have an up-charge (looking at you, Surf-n-Turf at Cagney's!!!).