I mostly watch LTT for the entertainment value but I’ve never taken their reviews particularly seriously.

Except, people spending hundreds to a thousand dollars on PC hardware do clearly trust him and his channel for the final "should you buy this or not" stance at the end of each review. It's not a negligible amount of influence he has on the tech review space, and it's explicitly because of their click-bait / algorithm friendly thumbnails and titles that they're able to reach such wide audiences and become the top few results when someone searches for a product.

it is clear that Linus knows his stuff

Is it? I've been watching for years and he always exudes "content creator persona" and very rarely expresses and real technical knowledge. He's essentially the youtube star version of that one kid who built their PC and never shuts up about it; he has certainly educated himself on consumer tech stats and comparisons, but his background and especially his current work have very little to do with actual technical know how.

And I'm not even saying that's a "bad thing", since he has writers and staff and now the Lab who should be able to reach that level of understanding and let him be just the face on the screen. But the fact is like Steve has said, that clearly also isn't what's actually happening behind the scenes.