It does. It is the Smart Health Card Verifier app I posted above. Smart Health was actually developed Boston Children's hospital and tied in with the Commons Project. Google Pay works differently than Apple Wallet but Samsung Pay supports Smart Health Card. CommonHealth app on other Android devices can store Smart Health cards. I posted this in the Covid Test/Entry thread.

P.S.: While I posted the verifier app is buggy above, I must add that the developers are quite responsive.