Backdoor ROTH IRA conversion?

[ken-do-nim]

From https://www.irs.gov/newsroom/new-income-...ty-in-2021

Here are the traditional IRA phase-out ranges for 2021:
$66,000 to $76,000 – Single taxpayers covered by a workplace retirement plan.

Here are the income phase-out ranges for taxpayers making contributions to a Roth IRA:
$125,000 to $140,000 – Single taxpayers and heads of household.