1) Popstats doesn’t seems to be working, I don’t see it in APM. Are there logs that I can check
Popstatscan be enabled in the update command. However, the command line option have changed. The --supportability-gateway-url and --supportability-gateway-token are obsolete and work only for public stations.
Use instead:
--set popstats.url=... --set popstats.token=...