I don't want to go back to Horizons. I want
what Horizons should have evolved into.
And your question highlights a logical fallacy that almost everyone on these threads (including myself) is guilty of - that we should be comparing Odyssey to Horizons.
Of course Odyssey will look better than Horizons (in most instances). FDev have had years to work on the new planetary tech, a primary aim being to introduce the fine detail that Horizons, as its precursor, lacked.
People are posting all these screenshots of beautiful Odyssey landscapes with highly detailed hills, escarpments, ridges, etc. (and mostly they really are beautiful), and then saying, "look, of course Odyssey is better!" Well, yes, surely years of work adding the parts Horizons lacks
should make it look better.
But getting past superficial looks, what I also see is something quite different. What I see is an expansion that has dumbed down the procgen to such an extent, it's hardly procgen any more. It's more procedural
placement of repeating terrain assets, rather than procedural generation of terrain.
The vexing part is, why did they do it this way? The obvious answer is time and money. It was probably the simplest method. But I see nothing in these new biomes that couldn't have been created procedurally, and there are plenty of examples "in the wild" of similar terrain generation. Some of these biomes are very straight forward indeed. Obviously I'm unaware of the limitations of the proprietary, closed source Cobra engine, but I would have thought Odyssey would have been the ideal showcase for FDev to take the lead again in procgen game development. Instead, they've regressed, and we get repeating terrain tiles and homogeneity.
What I would have hoped for in Odyssey planetary tech is for FDev to have used a modified Horizons procgen code base, and then added the fine detail procgen for each new biome. The result - every geological formation unique, and with the necessary chaos introduced to result in sporadic outlier geology like we see right now in Horizons.
So I'd prefer to compare Odyssey to What-Odyssey-Should-Have-Been, not Horizons, and I'm still a little dumbfounded that David Braben could be happy with this dumbing down of the procgen. But it is what it is.