It works fine for me in 2022 TurboTax. The only things that changes from year to year with regard to this calculation are the dollar amounts that are adjusted for cost-of-living. Otherwise, the computation has not changed for many years.
Please provide a link to a post that suggests that 2022 TurboTax is not allowing employer matching contributions to be included in the deduction. A Google search of these forums produces no such results. The only search results that appear have to do with user errors.
Which lines of TurboTax's Keogh, SEP, and SIMPLE Contribution Worksheet are incorrect?
Does your $20,500 elective deferral appear on Part I line 6a
Does your employer contribution appear on Part I line 6e?
Does Part III line 5 show more than $4,100? (Line 5 would have to be more than that to be eligible to deduct more than the $20,500 elective deferral.)
