Your own games stay yours when you join a team, and you can switch back any time.
- Open Team in your settings.
- Click Switch to my own games, or Switch to the team's games.
Every app page then shows the games you switched to, until you switch again.
You can be on one team at a time. To leave, click Leave the team on the same page.
Tip: working mostly on the team's launch? Stay switched to the team's games, and your own games wait for you untouched.