Portaling Functionality in POE & POE2

Regarding portaling, not really sure what the state of it is now in POE2, haven't played yet... excited to in a few days!

I understand in POE, the portaling in and out of boss fights

What about 1 way portals, in a boss fight when you can just at least be able to port out, but the portal closes, so you'd need to head back to the boss to attempt again from either town or the waypoint. It feels janky to log out or exit from game, feels bad, breaks the immersion... not sure if this is what's going to happen.

What about...

Having 2 portal types:
1. Personal/single use, port out
2. Social Portal where you can port a friend, it can only be used outside of boss areas
If you need to bring a friend to your area, you can still open portal for them to hop in, then the portal closes, single use as well.

If you die, your portals close.

In maps, if you had to run frequently from the starting portal, it could get tedious, maybe certain checkpoints in there where you can move the portals, not sure how the endgame will work with portals at this point...

Portals are part of the magic, but of course, they should be limited, maybe you can have item enhancements of portals, a Portal Skill Tree...