We are planning to migrate to Windows 2022 OS and we don’t see anything in the documentation stating that Jaspersoft 8.1.1 is compatible with Windows 2022 OS
JasperServer is generally not reliant on OS version, more about whether your operating system can properly run Java and an application server. That being said, JasperServer 8.1.1 hasn't been tested or certified against Windows 2022 Server:
See here for more details about certified platforms.