SkynetT1000
That video is confusing ‘compact’ phones with ‘mini’ phones. In the video MKBHD says the 5.9″ Zenfone 9 (a compact phone) was his ‘Phone of the Year’ by “a landslide”, then goes on to talk about why Apple discontinued their Mini phones after the iPhone 12 Series. At 4:35 he provides a table to demonstrate how badly the Mini sold, but the table also highlights that the regular iPhone 12 was Apple’s top seller, selling more units than their Pro and Pro Max models. What needs to be pointed out is that the iPhone 12 Mini was a mere 5.42″ diagonally – the regular iPhone was 6.06″, which is about the size I consider modern compact phones to be, and is within the OP’s preferred range (mine too).
The Zenfone 9 and Galaxy 23 were 5.9″ and are further examples of how functional and efficient a compact flagship can be.