AIBU to have identified that the Chancellor seems to have has one of his key policies is pushing up inflation as much as possible.
Eat out to help out - give the middle classes money so they go out and spend more, pushes up inflation
Stamp duty holiday - pushes up the cost of homes = more inflation
Giving everyone £400 pounds, not enough to cover the increase in fuel bills for the poorest, but £400 that those who can afford their fuel will spend on other things = more inflation.