I feel the exact same way, except that id recommend it for many of the things you've criticized it for. The gameplay loop is pretty unique, and the build up to cooking every night implements a level of strategy to the preparations you have to make leading up to it including what fish to catch and how you invest your money.
The game feels all over the place, but in a really good way. It's not just a repetitive, "fish, cook, repeat". There's a million random ass things that get thrown into the mix which is a complete 180 compared to most games made now. It's good because it doesn't really follow the traditional rogue-lite formula that we've come to know. It gives off the feel that the developers created the core game, (fish, cook, repeat) and then along the way took a bunch of, "wouldn't it be cool if we did x" idea they had and threw it in there to mix the game up. It's a super nice game to play while relaxing as the stakes are low, the story doesn't require immense focus to follow, and you're ultimately just fucking around under water as on overweight diver named Dave.
It feels a lot like a game made for those that don't play many games, and I think that's why it's doing so well.
I mean the whole concept of the fediverse is inherently going to attract the more paranoid of people who don't want to have big tech down their throat 24/7. The people most aware of this are those that work in/adjacent to big tech, and have enough understanding to be genuinely concerned about the state of the internet. Not that you have to be in tech to use/enjoy the Fediverse, but Lemmy is inherently inconvenient and less content rich than Reddit so it's going to create more niche/less diverse communities who have common interests.
Tech also has a very large trans demographic compared to the general population, and you can see that reflected on Lemmy too. The whole platform is largely going to reflect tech demographics until it is well known by the general public.
I'm just glad most people here are nice and willing to have open discussions. I've seen more threads of people disagreeing and reaching common ground than anywhere else.