Thoughts:
Religious Community: I don't think I ever used this before, so I'm glad to see a buff.
Fixed an issue where Wonder build requirements were being fulfilled by districts owned by other players: That was a mistake??? Damn. I did that occaisonally. Too niche to get mad about, but whatever. I wonder if you get adjacencies?
Einstein and Da Vinci changes: both good
Amenity changes: Good. I hate that content used to include -1 becuase you still get a red amenities icon at -1 which annoyed me.
Raj buff: Did this need a buff? I used Raj a lot before, will do so even more now.
Public Transportation Buff: Sounds good. Still won't build neighborhoods much though, partisans still exist even if (barely, and arguably) nerfed.
Democracy buff: Excellent. There's a lot of games where I want to choose democracy but nobody likes me. This gives me a reason not to go communism, which doesn't have good policy slots (forget about fascism, which REALLY needs a buff)
Great person wildcard policy buffs: good, I rarely used them before
Population policy nerfs: Good, these were OP before and I like buffing tall.
Eureka/Civic buffs for needing fewer power plants, biplanes, etc: Mixed bag. For ones like build airpots or power plants, good. Those are super expensive and those eurekas almost always pass me by.
Adding eureka/civics to ones that were previously boost thru spy: good
Changing eureka that used to have a condition into boost thru spy: bad
One title in secret societies mode: I think I am not with the majority here, but I don't like this change. But not enough to reall write a long post about it.
Autocracy effecting diplomatic quarter: Good, although I don't think you'll have autocracy that much longer once you get this district up anyway
No ley lines in snow: Bad, I liked the occaisonally useful snow city. Caveat: changes to a good change if there is a corresponding increase in ley lines in non-snow
Ley line buff: good
Byzantium can no longer have both hippodrome and water park: If your game is still not over by the time water parks come out, you aren't playing Byzantium right. But still, good change, was probably an oversight.
Mines built by gaul now provide tourism: Wow, this could be a real game changer. Suddenly they are going to be a cultural victory powerhouse
Still no "made the hall of fame actually record your wins" bugfix for Switch: bad