I'm mostly satisfied with the new generation. Maybe just because it's new and I was tired of the old generation after 8 years.
The only thing I don't like is rivers, which are too wide and they don't look like rivers anymore... They look more like lakes or reservoirs, and now building bridges from one side to the other is not very appealing anymore, because either you make a huge bridge like this one which was massively upvoted the other day on Reddit, or you'd better not try to make anything:
Yes, an impressive job, but not doable on survival for most players.
Just to clarify, most 1.18 rivers are like these ones:
They are so wide that sometimes almost overlap each other like in this image.
I think the problem has to do with the transition between a regular biome and the river biome... In previous versions, the regular biome ended where the water started, and the river biome coincided with the extension of the water... In 1.18, however, the river biome starts in the middle of the river, so that only half of the water you see in the image is actually the river biome, while the water near the mesa biome is actually part of the mesa biome. And that happens with all the rivers and all the biomes.
It looks like a bad implementation of rivers to me, like if they have given up after many tries.
I don't see what's wrong with this? Rivers looking like lakes sometimes just means more variation, same thing when rivers turn into a saddle valley.