All commodities increase in price during periods of inflation but will be uneven, chicken can rise above 4€/kg, but other foods demand less so prices will increase less. So you cannot say that the inflation figure is incorrect. Prices will depend on supply and demand, for items that are not in high demand, prices will hardly increase.
But you are right, prices will hardly change even if inflation falls, but this can be caused by traders deliberately manipulating prices and governments being too negligent in stabilizing market prices. And the salary increase needs to be considered to balance everything, if the Government rushes to increase wages, they will face many difficulties in controlling inflation.
That's how inflation works in theory; in practice, I haven't seen what you're claiming. Supposedly, inflation is the average percentage movement of a specific list of goods, but in reality, I haven't seen any goods decrease in price. Everything has gone through the roof, so your statement is invalid. All goods have increased in price; I haven't seen a single item being cheaper than it used to be. It's a complicated matter; it isn't that simple to increase wages. The main issue is that after prices increase, even after the condition is settled, they'll never return to where they were. This, in my opinion, is pure speculation that goes without any monitoring.
In my country, the price of gasoline has dropped to almost pre-war levels, leading to a drop in prices for many commodities. I remember correctly, not too long ago there was a topic about the lack of onions and eggs causing the prices of these two items to soar that many people could not afford to buy them. But meanwhile, onions and eggs in my country are still cheap foods that anyone can afford. Not to mention electronics in my country are cheaper than ever because demand is slowing down, and they need to lower prices to stimulate demand... and many things are changing.
You are right, we will never return to the original position but in terms of macro factors such as increasing population causing increased demand, impacts caused by nature… there are too many problems, and it is difficult to solve them all. So over time, things will get worse, and instead we should find ways to adapt rather than blame and complain.