Noticed those as well.
Usually the side bar recommends the usual bunch or related content but then there is this totally random video of some small channel with 10 maybe <1000 views doing a let's play or some random content which is completely unrelated to the content I watching at the moment.

Most of them are rich anyway and don‘t necessarily produce better videos than someone with their phone in their garage workshop or a bunch of college students in their dorms. If anything it feels more like the old Youtube again.

In the case of LTT: Not everyone can absorb the cash flow for an ULTIMATE PETABYTE MULTI-NODE STORAGE SERVER BUILD.
I honestly enjoy those as uneducated as some videos are, those infrastructure videos are really enjoyable for the amount of jank.