I myself didn’t know anything about this person so I poked through their blog a bit. They are clearly marketing their education business (and I am not their target audience) but also seem to know what they’re talking about. More to the point: their material appears to be sincerely helpful to intermediate (and even advanced) NET devs. This relatively short post on unsafe array access in C#[1] although not especially deep, does at least dive into the runtime / IL internals enough to give a clear picture of what the unsafe code is actually doing.
I haven’t watched the video either but they are creating good-faith tutorials, they are obviously capable of understanding the .NET GC, and there’s no reason to suspect they would change type and BS their way through a new video series.
[1] https://tooslowexception.com/getting-rid-of-array-bound-chec...
Don't spend your time on anything you don't want to, but if you want to learn about .NET GC then either research the author or research other deep dives into .NET GC.
To research the author you could.
Go to the About page on their blog...
You could also look them up in Stack Overflow. https://stackoverflow.com/users/2894974/konrad-kokosa
You could watch the first 10 minutes where he addresses this.
* David Fowler (ASP.NET Core creator)
* Andy Gocke (Lead developer for the CLR)
* Jared Parsons (Lead developer for C# Compiler team)
* Miguel de Icaza
Presumably if he wasn't saying anything worth listening to, they would have unfollowed him by now.
Miguel de Icaza is the creator of Gnome and Mono.
Select his name, right-click, "search in Google".
https://raw.githubusercontent.com/dotnet/runtime/master/src/...
Or spend an hour listening to this person. Who knows his videos might have some bits of important information.