I never finished one of those, but it could solve issues that I have with the games. Only tried once and I got bored and dropped it. The Pokemon games are really slow and really easy, and I made the mistake of playing HeartGold. People really like those remakes, but there are more interruptions (and from what I have seen, the problem only got worse and it was absolutely insane in Sun and Moon, because I guess that's just Game Freak's fetish now, they love stopping the actual gameplay to explain obvious shit and not allow you to skip it, and to make you waste your time again every time you play the game) and it's slower, and there are even more random variables that annoy me, and I made the mistake of not emulating it because I own the game. Still like Pokemon, but I haven't played one in years. Somehow, I played the games enough that I didn't get anything out of them anymore, and I didn't like where things were going so I quit after completing the Gen 6 pokedex, which is something that I never thought would happen, and it's kind of a shame because I did pretty damn well competitively (primarily on Showdown) despite not playing that much, because I knew the entire meta so well and my predictions and mind games are solid.
Maybe I should play some of the hacks. Preferably an earlier generation because I have a hard time ignoring all the annoying mechanics because I guess I have a little bit of the OCDs (though Colosseum would be nice and I feel like playing that, or maybe Stadium, that has no annoyances other than the cheating AI and evasion spam). All the randomness with IVs, natures and abilities, and having to EV train and breed for egg moves, I really don't have the patience for that anymore. Even if I don't go for perfection, I have a hard time not paying attention and ignoring that I have terrible stats. Too many annoyances. I also have to once again figure out how to delete my save if it's not on an emulator, because of course it can't be easy, and of course you can't have multiple saves, and of course you can't even have higher difficulties. And then after all that, I get to the Battle Frontier and get great runs destroyed by luck anyway, because of evasion. Even in the older games, that are simpler, there are limited TMs and breeding and some pokemon learn basically nothing and just suck ass, and there are version exclusives and trade evolutions. I guess that's a good thing about Nuzlockes, they eliminate all of those issues since you have to follow the rules, so there aren't as many decisions to make. A randomizer run could be great too, because then it's all about the randomness and it's not supposed to be optimal. I should do a randomized Nuzlocke, actually.
This unintentionally turned into a rant. I love Pokemon, but I really don't love Game Freak. At this point I kinda hate them, not gonna lie, because over time I became less tolerant of all the annoying bullshit that they did with their games. And that's ignoring their current DLC-infested abomination that I admittedly don't know much about. Showdown must still be fun, so I could play that, but I would have to watch competitive matches to figure out what people are doing and see the new moves and abilities.