This page documents how Anonymize Other Operating Systems
The Tor Launcher is now integrated directly in the Tor Browser rather than as an extension in 9.0.
Only TOR_SKIP_LAUNCH=1 is needed to disable Tor. The rest aren’t really needed. TOR_HIDE_UPDATE_CHECK_UI=1 might be dangerous as it doesn’t alert the user of updates (I think) and TOR_TRANSPROXY=1 prevents the user from using any other proxy (e.g. if using a different socks port).
TOR_NO_DISPLAY_NETWORK_SETTINGS=1 might not do anything anymore as the onion button is gone.
Already in the wiki page I linked above.