Full teardown is out...
https://www.ifixit.com/Teardown/MacBook+Pro+16-Inch+2019+Teardown/128106
Minor components are modular, but the processor, RAM, and flash memory are soldered to the logic board.
Glue and/or rivets secure the keyboard, battery, speakers, and Touch Bar, making those components a tricky fix.
The Touch ID sensor is the power switch and is locked to the logic board, greatly complicating repairs.
1/10 for repairability. Anyone rivetting components into a laptop in this day and age can't hide behind the excuse of making it "easier to recycle".