"I think this should be reported on the 1040 on Line 4 for pensions"

But it isn't "from" the pension. It's "from" the settlement.

Here's what the web shows:

"Settlement payments were made to eligible current Plan participants via a credit to your account on Monday, December 21, 2020.

Checks were mailed to eligible former Plan participants, or eligible Beneficiaries and Alternate Payees, on Friday, December 18, 2020. Please allow for two weeks for the delivery of your check."

"Class Members are eligible for cash benefits that are deposited into one or multiple investments that were at issue in the JPMorgan ERISA violation class action lawsuit. Class Members do not have to submit a claim form to receive benefits.

Class Members who no longer have 401(k) plans with JPMorgan Chase are still eligible for benefits.

In the case of former policyholders, if they wish to have their benefits deposited into a different retirement account, they must complete, sign and mail in a Former Participant Rollover Form by Sept. 12, 2020. If a former policyholder does not submit this form, they will receive their settlement benefits in the form of a check."