How powerful is Superman the last sun?

As title says, How powerful is Superman the last sun?
Contrary to his awful and wanked setting, he has few feat.
So, what do you think about how powerful is he?

Idk he was taking attacked from multiple heroes but got killed by a black hole. Than again it makes sense, you can have the biggest star near a blackhole and it will get sucked in. Black holes in was probably his kryptonite.

Considering his short lifespan in comics he's probably impossible to measure, especially since he got amped by the attacking heroes, so his powerlevel wasn't even consistent in his short showings.

No way to tell
He seemed pretty strong considering he can fight off a few low herald level like nothing but also gets destroyed by a black hole

Powerful enough to lift the stellar mass in his arms and legs etc.

more powerful than sentry for sure