I'm sad that popup front cameras didn't catch on. I only remember 2 or 3 phones that had them. For me it's the perfect compromise - this way you can make an end to end screen without the need for a notch, and since I very rarely use the front camera, I wouldn't be too concerned about the durability of the popup mechanism. The only real downside I see is that it complicates waterproofing.
I mean the latest crop of phones aren't that far off, we've got fingerprint sensors behind screens already and the front facing camera on my Pixel 7 is a pinhole at the top of the screen less than a centimetre across—which IMO just blends in.