Halo Inside is trash

Didnt get an invite last weekend so didnt get to try.
Everyone can play, and in fine print somewhere “except for those who cant”
Even after getting a friend code Halo Inf. insider wasnt an option to download. had to use the friend account who gave me the code AND THEN halo insider was visible.
And then after downloading 1) Youre not authorized to play this game 2) please sign into the account that purchased the game (the free to everyone game)
This whole thing was a rolling dumpster fire.

There are threads pinned to the top of the infinite section that gave all the relevant instructions.