Don't Install iPadOS 13 Beta If You Can't Stand Bugs
If you don't like dealing with bugs and performance issues, avoid the initial iPadOS 13 betas.
You can use Apple's betas on a primary device, but we highly recommend using the software on a secondary device if you have one. Apple agrees.
In its Beta FAQ Apple "strongly" recommends installing beta software on secondary devices rather than the devices you use the most.
The current list of iPadOS 13 beta problems include busted apps and services, abnormal battery drain, Wi-Fi/Bluetooth/GPS/cellular data issues, and more.
There's also a pretty major security flaw that allows people to bypass a device's security and access passwords and usernames from within the Settings application. The issue can be seen in the video below.
Apple will refine the software in new beta releases but future betas will come with their own collection of problems.
While you might be able to fix some problems yourself, others will require a fix from Apple. If you depend on your device to get through a day at work or school, and you value your security, you'll probably want to stay on iOS 12.