You don't have to explain that you did not get unemployment benefits. You're not required to accept unemployment benefits.

As for 2019, you may need to file a tax return if you are required to file.  If you haven't gotten W-2's from the other two jobs, you could get an IRS transcript which shows all the W-2's that employers sent you. . You could use copies of those to file,

Contact your previous employers and request copies of your W-2s. If you can't get them, you'll be able to create substitute W-2's.

If you got paid with cash or checks or were self-employed, enter the income earned. See How do I report income from self-employment?

• To create W-2's, see How do I file a substitute W-2 using Form 4852?
• For 2019 filing requirements, see IRS Publication 501.
• To get your IRS transcripts, see IRS Transcript.

For 2020, you may need to file a tax return if you are required to file. See Do I need to file a federal return this year?

If you are not required to file a tax return but want to receive the stimulus payments, you'll need to file a tax return. See How do I claim the Recovery Rebate Credit?

> As for 2019, you may need to file a tax return if you are required to file.

This is a thing I want to clarify.  Would I still need to request the W2's from them even though I did not work for them in 2020?

> If you haven't gotten W-2's from the other two jobs, you could get an IRS transcript which shows all the W-2's that employers sent you. . You could use copies of those to file,

I'm not totally sure what you mean by this.  Do you mean look for the wages I was paid when I got my W4 from them and present them when I file this year?

Any W-2s or tax reporting documents that show 2019 will be filed on a 2019 individual income tax return, not the 2020 individual income tax return.

The wages you earned while working in 2020 should be reported on a 2020 Form W-2 to be included in your 2020 individual income tax return along with any other income received during 2020..