So during covid pandemic, a big issue that I kept hearing about in the news and on the Journal podcast was that the economy is hot which is bad and causes interest rate spikes from the Fed if you are in the U.S. or Bank of Canada if you are in Canada.

tbh, I never fully understood that. we live in a consumerism, materialistic and capitalist society. i thought that people buying non-stop was what corporations and American govt valued, hence why we are hit with ads everywhere we go. and yet it was somehow a bad thing and was causing economic issues?

so I looked into it and came across a reddit post that basically explained it in simplistic terms like this:
the iPhone costs 1,000$. now, if not many people can afford the iPhone cause it's out of budget, what that implies is that not many people have 1,000$ which means that 1,000$ is hard to get which raised the value of the dollar, which is good for the economy.
If a lot of people can afford the iPhone, it means lots of people can afford to spend 1,000$ which means it's not as unique position to be in anymore, to have 1,000$ in spending money which apparently makes it worth less, cause more people have access to such funds.
Moreover, besides lowering the value of the dollar, more people being able to afford the iPhone is apparently also not a tenable situation cause apparently supply for iPhones could not meet the demand if it's suddenly now in so much more demand, so the value of the dollar going lowering is not only bad for the economy, but also has an effect on supply-chain issues.

Now, if I understand correctly, during covid and shortly after, the stimulus checks were given to people, both middle and lower class. the stimulus checks allowed for lower class to be able to afford more basic necessities from what I heard. This also however, also caused middle class people to be able to afford both more basic necessities and also to spend on luxuries (gonna continue with my current example of the iPhone). So the lower and middle class people having more spending power to be able to afford their necessities and maybe splurge a bit on luxuries causes the value of the dollar to go down cause now things are more affordable to people. and the value of the dollar going down causes wall street/the fed to freak the fuck out. and this causes them to raise interest rates, which has a domino effect of causing unemployment which obv leads to less people having spending power which causes a dampening effect on how much people are buying which brings the value of the dollar back up and the Fed is happy again.

I know I have probably oversimplified some parts cause I am not an economics person and God forbid the Journal podcast actually do their job and breakdown how the economy is screwing people so most of what I know comes from online research and what I can glean from the news but is anything I said incorrect?

cause if what I said is correct, that means that whenever the government keeps saying "the economy is fine" in response to people saying the times are tough, I get confused how that's a counterargument from the govt and not actually a subtle confirmation that times are tough for people. cause what it actually means is "the value of the dollar is fine, but the people are hurting cause that is needed for the dollar to be fine"?