For what it's worth I have often seen stuff in credits pointing out what companies have provided things for a show on TV ("nobody watches the credits" well I do so your point is actually empirically false! Though I understand).
I think with this entire topic there are many knobs that can be turned. We might not have them set at the right level, and we can adjust. But it's totally not a binary thing. Though I would honestly be very up for much stricter disclosure rules on this point for things advertised to children.
My personal feeling is at one point in your life you learn that media is given access to stuff for advertising purposes, so every brand made visible is just "obviously" product placement. If there's an explicit endorsement really make it loud if it's an ad/all the conditions of the review. But I don't feel like watching Lydia Tar use a Macbook is really much of an endorsement of anything, and do not feel the need for this to be an ad (just like I don't need a disclaimer about Tar being an ad for the Berlin Philharmonic).