ISO "disposal" is not typically a term used. Box 11 is a distribution from Sec 457 and other nonqualified plans.  Be careful that you don't have both qualified in Box 1 and nonqualified in Box 11.

A TurboTax post I found.

The IRS did change reporting requirements for 2022. It is being correctly reported on Schedule 1, Line 8t and Form 1040, Line 8. Here's more info on Non-Qualified Pension Reporting.