Your review right there is more than enough reason for me to never ever buy a fold. Ultra Plus for me for life.
I just had the screen protector peeling issue on my Fold 4 happen over this weekend and then the inside screen randomly cracked. Luckily it's covered under warranty. I'm just waiting for UBreakIFix to get the parts in stock so they can do the repair. As soon as that's done, I'm trading it in for the 5 so I can reset the warranty window and add insurance as well. Thought bout the 23 Ultra for a moment but I love the formfactor of the Fold so much it'll feel weird going back to the smaller screen and layout.
I would say if you don't use it open at least 60% of the time it's not worth it. I know some people like to play games on it so there is that. But for me it was a business tool and I found the lack of pen (yes, I had a pen and a case which had a pen holder, but that added to the size), weak battery life, and little issues to be a deal breaker.
Unless you need multiple windows on-the-fly then I'd just go with a tablet (I have an 8.5 and an 11"). When I see clients depending on the complexity of the work I'll use any from the same up to my laptop.
The battery on the Ultra is twice as strong as the fold and the pen is contained in the body. the screen is big enough to do rough workups.
I'll get used to the body size. After all before the fold I was rocking Notes.
But to each his own. Get what works best for you.