Wow, we've had a similar experience with Persona it seems lol. I initially bought P4G on Vita back in 2015 or 2016 and didn't like it. Persona 5 was released a couple of years later and I was enamored by it. I had sold my Vita at that point so I wasn't able to go back and play P4G until Atlus finally decided to bring it to Steam and I loved it nearly as much as I did P5. Then I just had to go back and play Persona 3 (played FES) and it ended up becoming my favorite game of the three surprisingly (would have thought the oldest game would be my least favorite when I was heading into it). 

Minesweeper. It took me forever to learn how to play when I was a child.

Re7 - hated if first because It became first person camera,

Regretted not buying it day one coz I'm a resi fan!

The bakers made me laugh instead of scared I had a blast with re7.

Code vein - the trailers looks iffy at first but when I tried the demo I got hooked,

Played the demo for like 20 hours and then ended up platinuming the game,

I think I did the coop trophy 200+ times grind I think that was before the update lol.


The Witcher 3 - I had open world rpg fatigue after just finishing dragon age inqui,
Came.back to it and did all side quest

82% on trophies and after spending 50 hours on Gwent still haven't collected all the cards haha

code Sword Master Story

Splatoon. Did not like the demo but now it's one of my top 3-4 Nintendo franchises.

Souls. Hates the series until I learned how to play it. Now it is my second favorite franchise.