The last update messed everything up

The last update literally messed my entire 100% survival world up. The first thing I noticed was in the nether. Before the update there were literally zero piglins in the wastelands, actually scratch that there were none anywhere besides the remnants. After the update there has been an ABSURD amount of piglins everywhere. The second thing that got messed up was the sound. I keep getting wrong sounds, like lava when there's none around. But not just lava, I keep hearing hostile mobs even though I'm on peaceful. That's understandable though, because it can happen that different things get accidentally triggered, but what puzzled me was the unknown noises. I've been playing for a while I've seen everything and heard every noise, but I heard 3 new noises that sounded like hostile mobs got put through autotune and then a wood chipper. Once again, however, I was fine with it all until I saw the last thing that got messed up. This one made me want to delete the whole game all together and to be honest I will if it doesn't get fixed. My achievements got turned off on my main survival world. I have literally never even tried turning cheats or creative on and I put in so much effort and time into this world to get everything I have and that has now been basically destroyed by this update. Most things I can get over I can deal with the random sounds and an unbelievable amount of piglins but you literally stole my biggest achievement by putting this update out and that's that I never cheated on that world. The hotfix didn't fix anything, it in fact did the opposite and broke the whole game. If anyone is browsing the bugs DO NOT UPDATE YOUR GAME.