As a user of the galaxy fold 3 for almost 2 years i can say without a shadow of a doubt. Its not a gimmick. Ive genuinely had no issues with it in terms of durability or faults (i know there are some that did but i guess like many others i got lucky) I could never go back to a standard phone. Watching videos, browsing the web, playing games. Even stuff as simple as being able to see a whole picture without needing to zoom in to catch details, but still having the option to, has been brilliant.
Being able to use it closed for normal stuff and open for bigger stuff (honestly the majority of the time i have it open) is so functionally superior.
The camera options are great. I have a main set of cameras on the back, an under screen camera for the big inner screen and a front facing camera for the outer screen and if i want i can ipen the phone and use the main cameras as a selfie camera because the view finder can be displayed on the outer screen which when open is pointing towards me.
The multi tasking is pretty powerful too. I can have my budget open on sheets, my calculator open and my notepad open all together. I can have maps open along with my web browser for train times and my s pen notes app open for planning trips.
I guess it comes down to use case. If you dont use your phone the way i do then you might not get the same out of it as i do. But for those that do its a game changer.
But since you are fully entitled to yoyr opinion i wont expect you to change it because of mine. And i wont down vote your comment because im only here to offer the view point of someone who has used the phone for nearly 2 years (as i said before) as a different perspective.
Seriously i could never go back. Im sad that the pixel fold is not turning out to be as good as the galaxy because i was seriously considering making it my next phone. Guess ill be going for the next galaxy device.
Out of interest what about the tech is not all the way there yet? Im maybe not as clued in as you on that point as i felt like the fold 3 was the nail on the head for these types of devices.