This false dichotomy is idiotic.
It is certainly true that Biden is not entirely to blame for rising inflation. There are a number of factors in play, including the war in Ukraine, restrictions in China, government bailouts worldwide that poured too much money into growing economies (eg., Canada).
But the fact it isn't entirely Biden's fault doesn't mean he is blameless. The Biden administration has played a major role in driving up the rate of inflation through its excessive spending, its war on fossil fuels, etc.
It's not all Biden's fault but he definitely deserves his share of the blame.
Not to mentioned the previously cited points that his administration completely fumbled its response, claiming inflation would be "transitory" and belittling people who were concerned about it (eg., "high class problems").