Help downgrading to iPadOS 18 on my iPad Air M3

Hi guys, I’m new here and I was wondering if anyone knows if it’s possible to downgrade to iPadOS 18 on an iPad Air M3.

My iPad recently got updated to iPadOS 26 and I really don’t like it. I didn’t update it myself — a friend used my iPad and updated it without asking.

Is there any way to downgrade back to iPadOS 18? I don’t mind losing my data if that’s necessary. I would really appreciate any help. Thanks! 🙏