Finally just got to see TLJ a couple days ago (yay kids!) and I think I’d definitely like to see a “light” edit of it. I think just a bit of editing to remove the “humor” that doesn’t make sense in-universe and breaks my “suspension of disbelief” would make me enjoy the movie immensely more. Skimming through I see mention of some of them already, such as:

Poe/Hux “on hold” at the beginning. Maybe just have him say he has a message from Princess Leia, his boost gauge hits 100%, and he goes. Skip the whole back and forth “phone conversation” that was awkward as hell.
Luke getting the stupid look on his face and tossing the light saber that Rey brought to him over his shoulder. Such a crappy dismissal of the whole journey from TFA. Maybe just cut to a shot of it on the ground like he dropped it. Still powerful message of him discarding it but not so campy/stupid.
Luke getting his green milk. Just ax it.
Rey “reaching out”. Actually this I didn’t mind as much though maybe tone down the campiness of it a bit if possible. Hard to remember exactly how this went only seeing it once.
After Rey cuts the rock in half and it tumbles down the hill. I thought that bit of light humor was fine and could be left at that. Then they had to have it smashing the caretakers cart and them looking annoyed. It felt like something out of a dumb sitcom. I expected a laughtrack to start up. Just get rid of the cart being smashed.
In fact, the caretakers randomly showed up out of nowhere (after quite a lot of scenes where we were led to believe they were alone on the island), for no reason seemingly other than to be annoyed at Rey’s “antics”. I think they could be completely cut out as they are only in a couple scenes anyways.
Luke brushing his shoulder off after the bombardment. Just drop it, I think the point of the scene gets across without the little extra “joke”.

Probably a few more, but those I remember off the top of my head after just seeing it once.

It will be interesting to see some of the bigger edits as well!