The real cause of inflation is monetary, not supply bottlenecks. From Daniel Lacalle at mises.org:
One of the arguments most used by central banks regarding the increase in inflation is that it is because of bottlenecks and that the recovery in demand has created tensions in the supply chain. However, the evidence shows us that most commodities have risen in tandem in an environment of a wide level of spare capacity and even overcapacity.
If we analyze the utilization ratio of industrial and manufacturing productive capacity, we see that countries such as Russia (61 percent) or India (66 percent) are at a clear level of structural overcapacity and a utilization of productive capacity that remains still several points lower than that of February 2020. In China it is 77 percent, still far from the 78 percent prepandemic level. In fact, if we analyze the main G20 countries and the largest industrial and commodity suppliers in the world, we see that none of them have levels of utilization of productive capacity higher than 85 percent. There is ample available capacity all over the world.
Inflation is not a transport chain problem either. The excess capacity in the shipping and transport sector is more than documented and in 2020 new capacity was added in both freights and air transport. Ships delivered in 2020 added 1.2 million twenty-foot equivalent units (TEUs) of capacity, with 569,000 TEUs of capacity on ultra large container vessels (ULCV), ships with capacity for more than 18,000 TEUs, according to Drewry, a shipping consulting firm. International Air Transport Association (IATA) chief economist Brian Pearce also warned that the problem of capacity was increasing in calendar year 2020.