Has Apple really done much on high TPD chips? The only ones we've really seen them make are low power draw mobile chips for their phones. The rest they just use

Has Apple really done much on high TPD chips? The only ones we've really seen them make are low power draw mobile chips for their phones. The rest they just use Intel chips for all their laptops and even the iMac. I don't really see them doing it because it's not somewhere they can really get away with their usual "we control the whole stack and you can only run our software on our hardware (legally)" mess they pull with macOS.