For instance, highly realistic device mockups presented in ¾ angle help to build trust in a product since dimension in tandem with perspective add an extra level of legitimacy to the showcase.

Interesting perspective. The first think I think when i see angled mockups is, wow look at that fake mockup.

lol this kind of fake blog to sell your content is utterly disgusting and far too common on 'designer news'

"#1 Reason: Because we sell them."

TBH I can't stand seeing a product mock-up in an iphone render when a product is supposed to be cross-platform. It immediately tells me “we only focused on iphone and everything else is an afterthought”

After spending 2 hours sifting through free mockups that didn't fit this way or another I decided that my time is more valuable and spent $14 to buy the best iPhone X mockups (Clay + Metal, 7 angles, ultra high res) on the market. Users love it. Case closed.