Can I avoid a 10% penalty on my traditional IRA, because I am 55 and had loss of service of my job in 2020?

[VolvoGirl]

That exception is for 401K.   For IRA under 59 1/2 early Distribution Penalty See IRS publication 590B for IRA Distributions Page 24 for exceptions

https://www.irs.gov/pub/irs-pdf/p590b.pdf

[JohnB5677]

There are exceptions to the 10 percent penalty, such as using IRA funds to pay your medical insurance premium after a job loss, but they don't apply to simply losing your job.

If you become disabled before you reach age 59 1/2, any distributions from your traditional IRA because of your disability aren't subject to the 10% additional tax.  

In addition, you can receive regular monthly payments from a traditional IRA and not be subject to the penalty.

Any of the other exceptions will not be relevant for you.  @VolvoGirl gave you the link to the IRS publication  https://www.irs.gov/pub/irs-pdf/p590b.pdf.  The exceptions to the 10% penalty are presented on page 24.