One of my favourite things about Thor Ragnarok is Hela yelling “we need to get that sword to open the Bifrost” while waving around Odin’s staff, which also opens the Bifrost.
Like, does she not know? She obviously didn’t know about it’s destructive capabilities or she would have kept it with her to use as a weapon and wouldn’t have let Thor grab it. Maybe Odin got the staff after Hela was banished.
And nobody tells her that she already has a tool to open the Bifrost. Not even her executioner, who used to run the Bifrost. They’re all just letting her run around after a sword she doesn’t even need, which if you ask me is GOLD.