The rsession process is started after entering credential in the RStudio Server authentication panel. Before that, there is no rsession process:
rsession --config-file /wynton/home/bengtsson/hb-test/.config/rsc/rsession.conf -u hb-test --session-use-secure-cookies 0 --session-root-path / --session-same-site 0 --session-use-file-storage 1 --launcher-token 94AA5E5E --r-restore-workspace 2 --r-run-rprofile 2