Irrelevant thoughts about Kylo’s fate, though I know people have been discussed it before.

The kiss-to-death scene is practically comical and needs to be edited, I think, but I think there are two ways it could be done.

Cut away before death. The kiss is the closure to their relationship, but Ben can’t just come back and be accepted after all he’s done, so Rey leaves alone and Ben’s fate is left completely ambiguous (and canonically he still just dies off-screen).
Cut the kiss out, so Ben dies after reviving Rey, making it clearer to the audience that he’s sacrificed himself to heal her and tragically ripping away their chance at closure. Of course, we do still need closure for them, so in this scenario, Ben’s force ghost needs to be standing with Leia and Luke so that he and Rey get that last knowing glance at each other. This also goes that tiny extra distance to better sell “Rey Skywalker” (especially with her more emotional take), to the point that I honestly don’t think “Just Rey” should even be considered with this specific version. And this of course to go along with the other ending changes, like the Falcon take-off, Rey’s Theme, and removing “Rey. Rey who?” if it doesn’t hurt the pace too much.

I like #2 more personally, but I know some people didn’t want Ben to die on screen.