Joke post? For an example of a great female character in Star Wars, see Princess Leia.
Rey is the other side of the Padme coin -- Padme was so bland post TPM and was written almost like some inanimate object for Anakin's desires. Rey is so powerful and perfect everyone else orbits around what she decides to do.
Three movies couldn't do that for Luke Skywalker so I feel that's a little unfair to expect
Luke would have died to Vader in death star trench if not for Han.
Luke almost dies to a giant yeti, and would have frozen to death if not for Han.
Luke gets shot down in his snowspeeder (though he does rescue himself, he fails to rescue his copilot).
Luke got trounced in his first fight against Vader and lost a hand. And had to be rescued (dangling from a wire underneath Bespin).
Later he lost to the Emperor in ROTJ. It wasn't even a challenge for him, if not for Vader throwing Palpatine off the bridge, Luke would be dead.
So I'm not sure where he was depicted as "overpowered" precisely. He was rescued at least 4 times by his friends (more if you count Ben's sacrifice against Vader).
While he was a good pilot, he had weaknesses. (Also getting shot down by an AT-AT.) He was impatient, impulsive, and overly attached to his friends. This is established multiple times, both with Yoda and even in ANH with him wanting to run off to rescue Leia in Death Star.
Rey's weakness was... being slightly hesitant to leave her home world? Which she got over in like 2-3 lines of dialogue.
Imagine using this detail with a straight face in a serious argument about why the girl hero is unfairly OP in the space fantasy series about bathrobe superheroes waving glowsticks at each other for 40 years.
Powerlevels
Skill Trees
RPG Stats.
A story needs not these things.
A story needs conflict, internal or external. Saying Rey is overpowered highlights the weakness of the story as either:
1. She's never in real danger as she has been established to be able to do anything with no training or justification.
2. Her character quickly becomes inconsistent, and conflicts she previously would be expected to be able to handle cause her unexpected trouble.
It's the basics of storytelling. But sure, if you don't like the universe in the first place, it may not be your cup of tea even with good characters.