As said, spoilers, probably. Just beat the game. Didn't do everything but did a ton at 64%- did most of the substories except the final dancing one because fuck that guy/that minigame, failing all the telephone club ones, anything related to the gambling/chess minigames cause I cba.
My final thoughts about this game is that it's probably my favorite in the series, so far at least. Said this elsewhere but I started with 3 and played every one to completion since then, with the exception of Dead Souls. A lot of great improvements to the series- things like multiple combat styles (though I ended up enjoying Majima's more than Kiryu's, by kind of a lot), the friendship mechanic encouraging me to engage with side activities I spent little time with before, from stuff like the crane game to bowling, the equipment that shows substories on the map, substories not going away/chapter specific. Really liked the business minigames, especially the cabaret- thought the management was actually kind of fun. Story-wise I think this is the best one of the ones I've played. Tbh in the past story was always more secondary to me, and if you asked me to recall specific details about any of them I would be hard-pressed to, having not gone back to them really since I beat them. But by the time the story hit its "climax"- to me around the time when Kiryu goes to Sotenburi to pick up Makoto- it had me pretty much. I basically cleared all the side stuff I wanted to do by that point, which was lucky for me because the story grabbed me to such an extent that it would have felt weird to go play bowling while dudes are in danger, etc., and basically blazed from there to the end. The emotional "twists" got to me, despite the fact that I thought/still think that the fact that Tachibana+Makoto are related was kind of contrived. Found myself really caring about what happened to her, and when Tachibana died probably came the closest to crying at a videogame than I ever have. In general I thought that the fanservice/nods to later entries in the series was really well done, though having not played the first two I'm sure there's some stuff there that I've missed.
Anyone else here finished the game? What did you guys think? Interested to hear from other people who've beaten it as well.