Oh, so you're one of those people.This may well be at least that bad. Apple is intentionally breaking software that millions of people rely on.
Dropping 32 bit support is inexcusable. I'm anticipating my phone ringing off the hook in the weeks after release with people needing me to remove 10.15 and reinstall 10.14.
I'm disabling automatic macOS updates on every machine I touch. Almost nobody in the real world is ready for this.
And what's worse, I've got it running on a test machine, have had it for months now. It doesn't add anything useful. Other than broken software and the inexplicable System Preferences rearrange, it's almost indistinguishable from 10.14.
You probably said the same thing when Mac OS X Lion dropped Power PC apps. The real world isn't ready for it. Well, if they are not ready now, they will be soon. Apple Has been moving to 64 bit for the last 14 years. I am surprised its taken them this long. They probably have been thinking about dropping 32 bit apps since Yosemite. Just be happy those apps were supported for this long, and move on.
Every year we get people like you, especially when there is a big change. People who stood by Mac OS X Tiger, and said that Leopard would never replace it.
Same with Snow Leopard, and Mavericks. But the world has moved on
People will move on from Mojave and 32 bit apps eventually.
Just you wait when Apple moves away from Intel CPUs. You will be all up in arms.
FYI, there are plenty of changes, including the split up of iTunes without removing any features, the ability to use an iPad as a display, and several others.
Just because the interface is extremely similar to Mojave does not mean that it is the same.