You can in theory still use Google Pay with a Magisk module called Play Integrity Fix and using a fingerprint from a different phone to pass Basic and Device integrity. I'm currently doing it on my Pixel 7 Pro.
But it has a steep learning curve and is a temporary solution that will disappear in roughly a year once Google sunsets legacy integrity methods and starts requiring Strong integrity, which can't be faked under known methods. Google is also actively disabling fingerprints that are being spoofed, making the whole thing frustrating and even more temporary even when it works.