Per the IRS, living in a community property state DOES allow UNO to be split between each spouse.

https://www.irs.gov/forms-pubs/unemployment-exclusion-update-for-married-taxpayers-living-in-a-commu...

If you file a Married Filing Joint return, when completing the worksheet, you should report half of your unemployment compensation and half of your spouse's unemployment compensation on line 8 of the worksheet and your spouse reports the other half of your unemployment compensation and half of his or her unemployment compensation on line 9 of the worksheet. If your joint modified AGI is less than $150,000, you and your spouse can exclude up to $10,200 each. Do not exclude more than the amount of unemployment compensation you report on your Schedule 1, Line 7.