No, this is not political propaganda by the Daily Mail or anybody else.
At present anybody who qualifies for the full State pension (having made the required 30 years NI contributions) receives £110.15 per week. If they have any other form of income (either from employment or a private pension) and have made no contributions for an additional State pension this is all they get. And this, incidentally, forms part of your taxable income.
If you have not worked at all during your life you are guaranteed to receive, in “retirement”, £145.40 under the guise of “pension credits”. You are also guaranteed to receive this amount if your total income is less so if you have other income of, say, £20 per week you will get £110.15 pension (provided you have made the necessary NI contributions) and £15.25 pw pension credit.
There’s nothing disputable about this, nothing selective and nothing incorrect.