The list of patches is at SANS, check your cyber security organisation information to see how this impacts you and fix it. The iPod Touch is still being supported in updates – but you would expect that from Apple.
Apple Patches Everything – SANS Internet Storm Centre
My advice: Either you or your IT support need to check whether these issues impact your systems. You need to have a master document that details your systems, hardware, software, online, networks, back-ups, suppliers etc – so when cyber security (or operational) issues arise you and your support teams can quickly check if you are affected. From there you can take fast, effective action.
Further Reading
iOS 15.5 and macOS 12.4 bring updates to Podcasts, digital payments, and more | Ars Technica
Goodbye to the iPod – Octagon Technology
Apple Releases Security Updates for Multiple Products | CISA