Mikey is a cockatiel. I post his antics here.
I… I hate clipping nails. Like, I find it so nerve wracking, so I tend not to do it. Sometimes this means that my birds nails can be a little long, but they’ve never been insanely long. And more often than not, they’re ok. My birds move around so much that they sorta wear down their nails themselves. Sounds like your budgies are doing that too.
I don’t clip Mikey’s nails and he’s never had a problem with them. I’m always too worried I’ll mess up and cut them wrong, and he takes care of them himself anyway.