Fundamentally, inflation and printing money are popular things to complain about, but they are a vital part of any healthy economy. Without it there would be very little growth - something that China is actually dealing with right now. I
And as for politicians lying, not all politicians are liars - and no other politition running for president has ever lied as often or had their lies do more damage than Trump. And it's not even close.
Inflation could be important to exist, but not this much, when you have high inflation, that is something that you can't deal with, it's too much and price of everything goes up. Another point to discuss is that you can have things going up 100% higher, and government telling you inflation is only 10% or less, how could people trust the government after that, they won't believe the government, not that they did before, but not believe after that neither.
That is important because things you buy goes up 100% higher, and because government shows inflation 10%, the salary goes up 10% so you make 10% more but pay 100% more and that makes you even poorer, that is why people hate the government lying about inflation.
Printing money part is true, you need to do that, but USA printed more money in the last ten years than the previous 250+ years, that is not normal. I am not against printing money, but I am against printing that much money, that's too much. For what? To give PPP to congressman and their loved ones and the companies that bribe them, not just for people, not even half goes to people, rest all goes to these rich folks anyway. That is why economy was an issue under both Trump and Biden and didn't help the normal people.