iGaming: what usually gets harder when you launch a new GEO?

Curious to hear from people working with iGaming across multiple markets. When you launch a new GEO, what tends to become the operational bottleneck first?

• registration / verification
• payments
• SMS / OTP delivery
• retention
• customer support
• localization
• something else?

I’m particularly interested in whether teams see noticeable differences in OTP delivery and player communications between GEOs, or whether this is usually a relatively smooth part of the launch.

Would be interesting