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

I think he means 16GB, not 16" as he mentions 3 yr old but 16" didn't exist 3 years ago.

Yeah, should have been more specific - it's a MacBook Pro (15-inch, 2017)

older doesn't mean anything relevant to anyone but you. Did it have its bar mitzvah or is it 3 years old, nobody knows but you.