You can tell that it is a screen because of the HUD etc but it doesn't "feel" like one in practice.
I hear that the newer ones are better still.
If you go to a camera shop they should let you try it, that's how I went for mine.
It was sort of an insane jump but I'm having an amazing experience.
I told the wife I'd take very nice photos of a kid to try to justify the cost.
The glass alone can be $750- 1-3k. I'm borrowing glass rn.
Check out the sonyalpha subreddit to see what people are doing with it