When the new postal rates went into effect, my site no longer offered First Class International, only Priority and Express International, even though settings were enabled for First Class. It worked fine until the price change.
I was able to turn on First Class Large Envelope, but I am not not even sure most shipments would qualify.
I can not believe I am the only one to lose this shipping option with the price change.
I am on Magento version 22.214.171.124