Hey Gary,
Got this running:
pi@realtimepi:~ $ ntpq -crv -pn
associd=0 status=0115 leap_none, sync_pps, 1 event, clock_sync,
version="ntpd 4.2.8p12@1.3728-o (1)", processor="armv7l",
system="Linux/4.19.71-rt24-v7l", leap=00, stratum=1, precision=-20,
rootdelay=0.000, rootdisp=1.195, refid=PPS,
reftime=e4753908.36ea5b4a Wed, Jun 16 2021 19:59:20.214,
clock=e4753915.668e763d Wed, Jun 16 2021 19:59:33.400, peer=23018, tc=4,
mintc=3, offset=0.298251, frequency=-22.915, sys_jitter=0.149930,
clk_jitter=1.980, clk_wander=0.051
remote refid st t when poll reach delay offset jitter
==============================================================================
o127.127.22.0 .PPS. 0 l 13 16 377 0.000 0.298 0.150
*216.239.35.12 .GOOG. 1 u 36 64 377 61.574 -4.184 24.605
Let me know how it looks, or if there's anything I could improve!