We strongly advise against starting Zwift in this way, and getting into the habit of bypassing the launcher. One of the launcher app’s functions is to check if a new version of the game app is available. Getting in the habit of bypassing the launcher is how Zwifters end up using outdated game versions and wondering why things they’re supposed to see are missing.
Additionally - the latest Launcher app v1.1.10 has the new Defer Update button, which is handy, long-requested feature.