Just finished my game. It took me around 290 Sols though I could be quicker to rush out the seed planters.
After about 40% vegetation there wasn't a whole lot to do other than finishing the research tree, building all the wonders, and going for 40% of your people in workshops.
Nearing the end I was just spamming the diamond domes to get more people into workshops just cause you can't speed up the vegetation without the planetary anomaly.
This expansion has been a lot of fun but just wished there was some more ways to increase vegetation and the atmosphere, temperature, and water took longer. I actually got the atmosphere done first despite it being my last effort. Temperature was second followed by water. Then it was waiting for several hours on speed 3 for vegetation so that part wasn't a lot of fun.
I also think the new landscaping feature is great but too fast imo especially with two dozers. It is great though that we can finally change the map.
I think the out of dome farm is super OP especially when you put lakes around it and get the soil quality up and get some rain. I ended the game with nearly 15k food and haven't built a single farm since the mid game because of the out of dome farm and I only had one. I used to have a lot more food but I switched the out of dome farm to make more seeds. Also the new ranches are pretty powerful especially you can put them out of dome as I just couldn't build enough homes fast enough so that extra space is handy.