LTT is only popular because of youtube in the first place and kind of bad at what they do. I've seen lots of bad methodology and low value content so added them to my "don't recommend" list years ago. More on topic, Floatplane doesn't fix any of the problems with youtube, it's just another take on it that they're filling up with more clickbait thumbnails.
I have had various ways of testing things over the years, too, and like I said, they're not doing a good job. They don't employ experts, they just project expertise to an uninformed audience.