I remembered that Making Star Wars had leaked a summary of a later Trevorrow draft awhile back. The summary was poorly written and hard to follow, but now that I’ve read the first draft I decided to take another look:
https://makingstarwars.net/2020/01/i-read-colin-trevorrow-and-derek-connollys-final-star-wars-episode-ix-script/

Unsurprisingly it seems to have fixed many of my issues. The second act is bulked up, Rey’s climactic mission becomes the main mission to transmit the message, the Knights of Ren are far more prominent with one of them being the final villain that Rey and Ben face together. Things are simplified, like Kylo’s quest in the first act and meeting Lando. Kylo in general seems to have a bit more humanity - apparently it was Snoke, not him, who killed Rey’s parents - and he has at least one Force bond with Rey. Also interesting that this is now post-Carrie’s death, but they still include her, but in a similar capacity to TROS where she has a few scenes in the beginning and then dies. In that case I’d suspect they were already working with the idea of using deleted footage of Carrie.

I’d be very curious to read this draft, as it seems much better based on the summary. On the downside, it seems like they’ve lost Coruscant and Mortis in this draft, which is too bad.