It is because of the OTA that causes play store issues. If you are rooted with Magisk, go into the Downloads section in Magisk Manager and install SafetyPatch.
If you aren't rooted, then you need to jump through some hoops to install it outside the play store, because it uses split APKs/App Bundles.
I am running it fine on the Pro1 through the Play Store with the first method and the 20200304 OTA.
I have also installed it on 2 unrooted Pixel 4 XLs that have unlocked bootloader, which makes them not pass safetynet, hence can't see Disney Plus or Netflix in the Play Store.