I've made a couple minor discoveries with researching Shortcuts, ex CVE-2021-30763, Extract Archive Write Vuln, and (probably the only one that has actually a bit of impact) Hide Shortcuts Action Vulnerability.
|Device||Storage||Original Firmware||Current Firmware||Jailbroken?||Description|
|iPhone 11||128GB||13.5.1||13.5.1||Yes||My main iPhone. Works great, love it.|
|iPad (6th Generation)||32GB||12.?||13.5||Yes||Great as a test device for modern firmwares.|
|iPad 2||16GB||7.0-7.0.4||8.4.1||Yes||My first ever Apple device. Jailbroken on openpwnage.|
|iPad (4th Generation)||16GB||?||10.3.3||No||Test device. Bought second-hand.|
|iPad Mini 2||32GB||?||12.5.5||No||Test device. Bought second-hand.|
|iPod Touch 1||8GB||?||3.1.3||Yes||Bought second-hand. For fun.|