itemize or standard deduction last year?

Working on 2022 taxes, desktop edition:  To decide if I itemized or used the standard deduction last year (2021), I consulted the help topic "Did I Itemize Deductions?"  It says look for the standard deduction amounts on last year's return: $25,900 for MFJ.  This does not match the amount on 2021 Form 1040 (which is $25,100).  What am I missing?