We've all seen the videos, no one has ever been able to substantiate level1tech's sources for mass failures and one of them was even claiming to be seeing these issues on 13th gen models which are rebadged 12th gen parts using a different architecture which can't be affected by either of the main causes of degradation. Alderon Games aren't the only ones doing that kind of Unreal Engine dev on 13th and 14th gen CPUs, in fact there are dozens and dozens of studios just like that doing similar stuff, it isn't like they'd keep quiet if they were seeing anything like 20% failures let alone the 50-100% claimed failures. One of level1tech's sources didn't have the data to distinguish between whether lots of error reports were being generated by lots of unique players or whether a smaller number of players were generating lots of reports each (the second being the more likely scenario given other factors).
As I've mentioned before we've information from RAD Games Tools who were one of the first to discover the issue due to their products being widely used in games and susceptible to tripping the main compression/decompression issue and they are still saying it only affects a small number of CPUs mostly i9s. Related to that we can look at the nVidia forums where one of the early symptoms was out of memory errors from the driver and again there are a small number of reports but nothing consistent with massive failure rates.
We can look at the Asus forums which was one of the other early places these problems started to be noticed and again it is only a small number of reports, mostly i9s and mostly people who are rinsing these CPUs with heavy overclocking. (For example the pinned thread here has few actual reports and is mostly discussion of the BIOS updates and news 
https://rog-forum.asus.com/t5/intel...ility-reports-on-intel-core-13th/td-p/1030853 ).
We can look at these forums as well as other tech forums, for supposedly "ridiculous" numbers of failures there are like 2 other posters who've reported failures consistent with these degradation issues and there are plenty of people posting here who own 13th and 14th gen parts - not consistent with massive failure rates - these forums would be one of the first places where it would be appearing as can be seen with the 9800X3D issues if it was that prevalent.
There are retailers like Mindfactory who publish return rates for their CPUs - for the 13th and 14th gen, despite a spike of people reactively returning their CPUs when the news broke, the return rates average below 2% with only the i9s seeing slightly elevated failure rates - which doesn't support these claimed massive failures.
The Reddit megathread has hardly any documented cases of 13th and 14th gen failures consistent with these degradation issues, in comparison the 9800X3D megathread has more than 4x the number of documented failures despite being a more recent issue and no one is calling that massive failures. (EDIT: There are 1-2 reports in recent days, since I last looked at it, which are maybe this issue on the Intel one but you have to go back months for the last reports which are definitely this degradation issue).
Despite the claims by one of the devs, who later rowed back on the claims a bit probably due to realising a high number of the errors were from the same small number of users, we can see on Bugzilla the reports of failures on 13th and 14th gen CPUs for Mozilla products - the number of reports consistent with 13th/14th gen CPU degradation average about 15 a month out of 10s of millions of users and many of those are the same users generating multiple/ongoing reports.
Where are all these mass failing CPUs? because no source which is possible to substantiate are holding up to there being anything more than a small percentage of failing CPUs at this time.
There is zero actual evidence of failure rates above low single digits.