What the
video shows
Three steps matching a real launcher install. Watch the reel, then grab the client from the archive.
Launcher
Start CyberLeak Launcher, pick an SSD folder, hit download for the playable-build client.
Install
Package fetch, progress, file verify. Keep the launcher open until it finishes.
Launch
First boot: Leonida, Vice City, the in-client Play flow.
Install GTA 6 playable build
This walkthrough is for install-and-launch queries. Gameplay starts around 1:05. Text steps: launcher guide.