Handle joining overworked low-WLB team

Scenario

You have just joined a new engineering team. You quickly notice that:

• Every team member appears very busy and often works long hours.
• Work–life balance on the team seems poor overall.
• People are focused on getting work done and may not have much time to onboard or mentor you.

Question: How would you integrate yourself into this team and be effective, while also managing your own work–life balance?

Describe the concrete steps you would take in your first days/weeks, how you would communicate with your manager and teammates, and how you would balance being supportive of the team with protecting yourself from burnout.