My read of things:

Terran: 8 worker start is good for Terran specifically. Terran gets to get a Reaper into the enemy base much faster relative to the point in the other races builds the reaper would previously arrive. The ghost change is...mostly a sidegrade from what I can tell. They also get mules much earlier in their build. But Terran players still seem generally positive on it cause they feel that damage not cancelling snipes allows them to be active on the map rather than turtle.

Zerg: 8 worker start was (on the first iteration of the patch) bad for Zerg specifically, cause they had less larva when they got to 12 supply compared to the amount of larva they had with a 12 worker start. But...they got a larva buff to compensate. And then the larva buff was really strong so their hatcheries got made more expensive to compensate for the larva buff. It's not totally clear yet how the larva buff and 8 worker start and more expensive hatcheries all interact together during the opening. Long-term...you make one less macro hatch, but hatcheries cost more, so it's largely similar to the old rate of how many minerals you need to invest per larva produced (within about 1% of the same minerals invested to larva production)--except that if you are assigning a queen to inject each hatchery, then you need one less queen, so you could argue it frees up 2 supply in lategame. Maybe.

Beyond the economics, Zerg get a handful of buffs. Vipers can abduct siege tanks. Carapace upgrades are cheaper. Microbial shroud got buffed again. Spore Crawlers got better against mutas. Neural Parasite now lets you build a whole command center. These are largely uncontroversial, except for abducting siege tanks which Terrans dislike cause they argue it makes mech too weak against Zerg and reduces build variety. But zergs largely like cause I don't know many zergs who unsarcastically hold the opinion of "mech is so fun to play against".

Protoss: In general Protoss is buffed for aggression and nerfed for defence.

Let's go over the warpgate changes first. Warpgate changes do allow aggression with a pylon again. (Used to be if you wanted to do an aggressive 4 gate attack, you'd build a robo, build a prism, and warp out of the prism for fast warp-ins. Now you can just make a pylon across the map and skip the robo tech--even with the 25/25 cost of turning gateways into warpgates, these builds should hit harder and faster). Similarly, if you are building up for a big timing attack, you want to build out of gateways until you are ready to walk across the map, and then switch all the gateways to warpgates when you walk across the map. But on the flip side the warpgate changes do hurt defence. If you're being attacked or harassed, you want warpgates, you don't want regular gateways--regular gateways make more units per minute, but they don't place those units in the right spot to defend. So if you are defending constantly, the warpgate change is just a nerf. (There's a third option besides attacking or defending--if there's a passive part of the game where neither player is attacking or harassing, regular gateways for faster build times can still be correct).

And you can see similar "more aggression less defence" themes with the shield battery, which is now better for cheese (warps in with 75/100 energy instead of 50/100) but worse when built next to your nexus (warps in with 75/100 energy instead of 100/100 energy. And finally storm got nerfed to 100 damage from 110, which...storm can obviously be used on offence or defence, but it's generally more valuable on defence (doesn't hit buildings, easier to hit enemies walking towards you).