Oh, this will be FUN. Time to piss everyone off and get called out again for having opinions, yay!
Echoing Megan's sentiments about Breath of the Wild. It's a barren, pointless, thoroughly mediocre open-world title that does absolutely nothing that hasn't been done hundreds of times in other open worlds...in fact, it does them significantly worse. It actively discourages both combat and exploration with its abysmal weapon durability system and by sticking everything of interest in shrines, has a terrible soundtrack - and for a Zelda title that's positively criminal - and narrative-wise it's certainly no better than any of the other games...if anything it's worse, because the voice acting is horrific. I know it's a slightly more popular opinion to hate on Zelda's voice, but there it is all the same. Breath of the Wild is a terrible step backwards for the Zelda franchise which is change for change's sake, rather than meaningful, progressive steps forward to evolve the franchise. For a look at how evolution of the Zelda franchise should be handled moving forward, see A Link Between Worlds.
Also, Secret of Mana has aged *terribly* and if I'm honest I'm not sure why it would have ever been popular in the first place, because it's an unbalanced, broken mess of a game. It starts off punishingly difficult...and then you unlock magic and the rest of it is absurdly easy. It doesn't have a particularly noteworthy cast or story, the soundtrack certainly isn't even close to being amongst the SNES' best, and it feels janky to play even at the best of times. This isn't celebrated on quite the same level as FFVI or Chrono Trigger (and I don't care for that one either, for much the same reasons) but it's still generally regarded as one of the SNES' better titles and I really cannot see why.
Undertale is another game I never really saw the appeal of...and believe me, I tried. It's just...not very good? The gameplay isn't really all that entertaining, the soundtrack is pretty mediocre - sorry, but it is, especially for chiptunes - and it seems to be to one of those games where people just make of it whatever they want. Either that or they played a completely different game to what I did, haha.
Persona 4...where do I even begin with Persona 4. Honestly, I think this game would be just about fine if not for the existence of Yosuke and Chie. Yosuke in particular - he's a whiny, obnoxious, blatantly homophobic piece of trash. Yosuke Hanamura has the distinction of being the worst character I have EVER seen in a JRPG. Chie is one of the most annoying I've encountered, and the less said about Teddie the better. But this game really drags the fuck on, and it's not a particularly well-told or engaging story. The colour aesthetic is absolutely eye-watering, and the music...every time I think about Heartbeat, Heartbreak I want to smash something. It's universally awful. Outside of that it's a bog standard turn-based JRPG with watered-down SMT gameplay.
Also, Minecraft. I don't generally get on with games that have no real point to them, and Minecraft is as pointless as it gets. It's also frustratingly obtuse and unwieldy in Builder Mode, and it basically requires mods to be even slightly playable. Some people would call that good. Me, I'd call it the developers getting other people do their work for them.
FFVII Remake is a more recent one. See, people hated Final Fantasy XIII for its linearity, and they hated Final Fantasy XV for being an unfinished mess. So why does FFVII Remake, a game that combines these two elements, get universal acclaim? It funnels you down straight line routes, forcibly slowing you down in a manner that reminds me strongly of Star Ocean 5 to watch boring cutscenes and stare at scenery. Combat goes to shit the second you encounter a flying enemy, and it relies on FFXIII's stagger gauge system, only it makes enemies significantly more durable so it's a mindless war of attrition. The story might be better for subverting expectations of a re-telling, but it's got Nomura written all over it with pointless cloaked wraith figures. FFVII Remake is a painful reminder that Square Enix have not learned the lessons of FFXIII or FFXV, and yet people love it.
In the visual novel circle, Umineko. Oh my god, Umineko. Umineko is, on the whole, bad. The Questions Arcs are superbly written and mostly enjoyable, but the momentum falls apart completely in the Answers Arcs, with only the 3rd part of that really being worth reading. The rest of it is inane babble between a bunch of one-note anime tropes who shuffle on and off screen so quickly they barely have time to register, metaphysical bullshit, an endless hammering of singular points driven repeatedly into skull with the sublety of a large mallet, and some of Ryushiki's more obnoxious prejudices and writing cliches - child abuse being the most prominent one. Umineko doesn't hold a candle to Higurashi and, whilst it's not the worst thing I've read, it's still 100 hours of my life I'll never get back.