On my older (3+ year now) MPB 16 with a 512GB drive I get:
SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 41 Celsius
Available Spare: 100%
Available Spare Threshold: 10%
Percentage Used: 22%
Data Units Read: 621,054,721 [317 TB]
Data Units Written: 483,003,547 [247 TB]
Host Read Commands: 9,028,855,382
Host Write Commands: 3,924,827,022
Controller Busy Time: 16,789
Power Cycles: 8,373
Power On Hours: 6,828
Unsafe Shutdowns: 375
Media and Data Integrity Errors: 0
Error Information Log Entries: 271
My 2016 MBP shows very similar numbers, though my % is even higher (26%):
SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 30 Celsius
Available Spare: 88%
Available Spare Threshold: 2%
Percentage Used: 24%
Data Units Read: 356,923,637 [182 TB]
Data Units Written: 354,603,847 [181 TB]
Host Read Commands: 2,817,724,668
Host Write Commands: 2,270,199,931
Controller Busy Time: 0
Power Cycles: 21,443
Power On Hours: 996
Unsafe Shutdowns: 21
Media and Data Integrity Errors: 0
Error Information Log Entries: 0
Wow. How long ago did you get the MBP 16"? I've been running this system as my daily driver for >12 months and see very different numbers from you:
smartctl 7.2 2020-12-30 r5155 [Darwin 20.4.0 x86_64] (local build)
Copyright (C) 2002-20, Bruce Allen, Christian Franke, www.smartmontools.org
=== START OF INFORMATION SECTION ===
Model Number: APPLE SSD AP8192N
Serial Number: XXXXXXXXXXXXX
Firmware Version: 1161.100
PCI Vendor/Subsystem ID: 0x106b
IEEE OUI Identifier: 0x000000
Controller ID: 0
NVMe Version: <1.2
Number of Namespaces: 1
Local Time is: Tue Feb 23 17:01:28 2021 PST
Firmware Updates (0x02): 1 Slot
Optional Admin Commands (0x0004): Frmw_DL
Optional NVM Commands (0x0004): DS_Mngmt
Maximum Data Transfer Size: 256 Pages
Supported Power States
St Op Max Active Idle RL RT WL WT Ent_Lat Ex_Lat
0 + 0.00W - - 0 0 0 0 0 0
=== START OF SMART DATA SECTION ===
SMART overall-health self-assessment test result: PASSED
SMART/Health Information (NVMe Log 0x02)
Critical Warning: 0x00
Temperature: 37 Celsius
Available Spare: 100%
Available Spare Threshold: 99%
Percentage Used: 0%
Data Units Read: 53,827,033 [27.5 TB]
Data Units Written: 37,342,497 [19.1 TB]
Host Read Commands: 704,072,000
Host Write Commands: 669,901,451
Controller Busy Time: 0
Power Cycles: 234
Power On Hours: 528
Unsafe Shutdowns: 74
Media and Data Integrity Errors: 0
Error Information Log Entries: 0
