[2023] How is the instancing going to work on the multiplayer launch?

I've played the multiplayer test with a friend, it was great.

The only thing that we found wierd was the way we needed to do to enter the same zone.

We would be already in a party, he would enter a zone, I would enter too, but we would end up in different instances of that same zone.

To be in the same instance I had to wait for him to go to the next zone, click the blue portal icon, then enter the portal to join.

Where we doing something wrong? Will this be different on launch?

Because having this big of downtime and hassle between zones is kinda off putting