you notice how they started slipping in ads in their videos talking about who sponsors their video then they'll do a lil advertisement for them in the middle of something they are doing? lolYoutube premium >>>>
the DIY channels are infamous for doing this. They'll time lapse part of the video and have a thumbnail of them talking about their sponsor.
Its not as intrusive as the free youtube ads but its still annoying af and i paid for premium to not see any ads at all in any way shape or form.