This is half correct. You still lose the election if white voters in MI/WI/PA don’t come back to the Democrat side. That completely guts you regardless of how they perform in GA and those are still the 3 must win states. Likewise Arizona was a state that was mostly won on Hispanic votes in Maricopa and in Nevada they won in areas that has been very responsive to progressive policies.
It’s a hard election to say “this delivered it”. In the state’s Biden really needed he got the right combinations. But he pretty much underperformed in aggregate. He lost significant minority support outside of a handful of two key states and the House races were a complete disaster.
It was more of a team effort in 5 key states.