Inflation happens because money is hard to trace, so instead of reinstating old banknotes that are still in the system but is left out of the circulation, they will print more banknotes to accommodate the supply needed by the public. Not to mention excessive printing of cash during this pandemic. Until we find a way to make money traceable, or at least irreplaceable, Inflation will always be here to stay. Now in the case of bitcoin, this is where it shines the best because even though there are unused coins that are left in circulation, there is little worry about inflation because no more bitcoins will be created besides the 21 million that are there from the start.
The pandemic has caused so many challenges that almost every country in the world faced unprepared. Almost everyone has not anticipated the huge effect a pandemic may bring. Hence, it was such a difficult struggle for the majority, particularly to the developing and third world countries to cope up with the negative impact of the virus on the country's state and to its economy. Inflation is really expected to happen because the safety protocols and measures imposed were a disadvantage to the economic aspect of the country. The lockdowns, social distancing protocols in every place, travel restrictions, the closing of businesses, and job losses contributed a large percentage to the inflation rise after several years. The debt of the country made it even worse because they can hardly pay on time resulting in higher interest rates.
However, despite the negative effects of the pandemic crisis such as higher inflation, it won't last permanently. The higher inflation rate is just temporary - a repercussion of the actions done in response to the pandemic which can later be lowered the moment the economy will bounce back once again. It's just that the burden to the less fortunate ones will be a little heavier compared to those who belong to the upper bracket of the society given that the former barely have the means to survive and the latter are privileged enough to buy all the things they need without breaking their pockets.
I agree, but then again we have to consider the fact that with all the banknotes and currencies that are released in circulation, a huge number of them won't be reinstated into the system, hence prompting the central bank/federal bank to create more banknotes to make up for the lack of supply. This will keep on going.