I have a 2020 F250 with the Godzilla motor.  So far it works pretty good, no problems with it.  

Blatantly ignoring a "well known" problem - resulting in numerous failures and customers left holding the bag = class action and punitive damages. There are many reasons for "problems" 

Usually you hear the bad on the interwebs, people rarely come online to post the good and just carry on with their day.  Just like the bias towards the other manufactures, case in point, people still think Chrysler has tranny issues…never had one issue yet.  I know I have a bias towards GM, but I had a rented truck the other month and thought it was a great truck, albeit a newer one. I think all three have their strengths and weakness’, pick your poison and hope for the best.  As for not fixing a problem that is well known, IDK about that, does it happen, sure, but it gets blown out of proportion IMO when some folks have a bad experience that perhaps was not handled well by a dealer or competent mechanic.   If you can, try and talk to people you see on the road that has the truck or product you are interested in, most are happy to share their thoughts that you won’t see online. 

I've never heard much praise for the 6.0. Not that I ever heard anyone complain about reliability, but milage. Everyone I takled to always said that if you needed the power of the 6.0, you may as well git the 8.1. They both got about the same milage, and the 8.1 had way more power.   ???     Come on fella's, you're not really puting much on those motors! Mr's O typically gits a newer 'Burban at 400K miles, which is over 600K klicks. I think she's around 340/350 (?) currently, and we just had new bearings / crush sleeve / and even axles put in the rear end. This is the 3rd rear end we have had to rebuild in a row in the 300K range. No real issues with the motors. Tranny rebuilt around 225? ($$$ - I didn't doo that one myself)   I'm currently running a '99 Burban with the last of the 350's. I think it's around 275K miles right now. It was a North Carolina truck. A bit faded, but rust free.      .

That’s right, you’re going to find sick people at hospitals and problems on the Internet.  I want to know of these potential problems before spending $40-$50k to get into a new truck.  The 4.8. 5.3 and 6.0l engines were all bullet proof engines. I had a 4.8 and beat the piss (worked hard) out of it for 325,000km. They shouldn’t have stopped producing that one either.  never owned a 5.3 but they were good before they started designing them to shut down to 4cyls. Big problems with that and still ongoing with the new ones.   my 6.0L has been flawless and has also been worked its whole life so far. We got the last year of the 6.0L. I’m afraid if we trade it in, I’ll end up with the known 6.6L engine issues, that by the sounds of it, they still haven’t addressed.  And with the 6.6L only being introduced in 2020, it sounds like they still have some work to do on it.   I can’t stand ford, dont like the interior or exterior, im sure they’re solid trucks, just don’t like the looks of them.