docker run --rm -p 4444:4444 -p 7900:7900 --shm-size="2g" -e SE_NODE_MAX_SESSIONS=4 selenium/standalone-chrome:4.4.0-20220831
other options
#enable more session than cpu core
SE_NODE_OVERRIDE_MAX_SESSIONS=true
#change vnc password
x11vnc
-storepasswd
secretNew
/home/seluser/.vnc/passwd
docs
https://www.selenium.dev/documentation/grid/getting_started/
https://github.com/SeleniumHQ/docker-selenium#increasing-session-concurrency-per-container