This is a funny complaint to me, because if anything Hardware Unboxed is highly skeptical of RT--both because Steve has a declared bias towards competitive shooters (higher frame rates), and because RT has yet to show much of a visual payoff in return for the perf hit in most of the games in which it's featured. By the same token, HUB is and always was highly unimpressed with DLSS 3.0 (and later FSR frame gen). They acknowledge that the feature is interesting, but they also emphasize, constantly, that there are tons of use cases in which it is useless, possibly worse than useless.
Contrast all of the above with just about any other tech review channel, most of which chase hype at all costs. The idea that HUB carries water for Nvidia is laugh-out-loud absurd. Yes, they prefer DLSS to FSR. So does everyone on the planet. They also criticize AMD for its often incoherent pricing/marketing schemes. Those criticisms are well deserved.
Personally, I don't have much use for anything on youtube, these days. The whole site has become a wasteland of empty clickbait timewasters and shameless self-promotion. But if you do want balanced, well-researched, and consumer-oriented hardware analysis in video form, HUB is as good as you'll find, and better than the vast majority. If you don't care for video, then Techpowerup's all you need.