I've never owned a car which only has a 15" laptop screen to provide feedback and without which the car is undrivable (pedals and gear stalk dead and phone app was hanging).
A better analogy is "have you never had to hold down the power button to hard reset your phone or Windows laptop?". The answer, of course, is yes but very, very occasionally. Maybe twice in 25 years I've had to reinstall windows due to corruption, but not for a long time.
Obviously having to double scroll wheel reboot the car occasionally isn't more than an inconvenience. However it does indicate something is wrong. Should the double scroll wheel reboot fail to work, this could lead to major inconvenience. And the car is only 3 weeks old which doesn't instill confidence.
I am more than happy to beta test features for tesla as long as glitches are only minor inconvenience.
The team I manage supports windows and mac devices as well as phones, and lets just say they break a lot more than you have experienced, and have to be rebooted, in general, way more than you have experienced. Thats phones though, not a car.
I have owned my model 3 for a bit over two years now (2 years and a couple months) and have experienced a situation where the screen went dark, and there was no feedback, 1 time (was in the garage at the time).
Because the car doesnt get "shut down" that often (it goes to sleep) and I feel ALL computers need to be rebooted occasionally (obviously servers much less than regular consumer computers, but...) I shut my model 3 down using the power off feature after every firmware update. That means it gets shut down, on average, every 3-5 weeks or so.
I dont think you are going to have some systemic problem that renders the screen inoperable, and if you do, it would need a service appointment. Needing or wanting to reboot it using the thumbwheels, likely a bit more often but its not "common" for the car to have an inoperable screen.