https://atadistance.net/2019/10/16/pixel-4-goes-cheap-instead-of-deep/
Unfortunately Google went cheap instead of deep, sticking with the same Pixel 3 policy of only buying FeliCa keys for JP Pixel models.
Why is Google turning off FeliCa on Pixel models outside of Japan? I doubt it is a licensing restriction because the whole point of NXP PN81 is having all the global NFC licensing pieces, NFC A-B-F/EMV/FeliCa/MIFARE, all on one chip, all ready to go.