TL;DR: Tricky Store is an Android root module by developer 5ec1cff that spoofs your device's hardware key-attestation certificate chain and reports the bootloader as locked, helping a rooted phone pass Google's Play Integrity checks. Paired with a Play Integrity Fix module, it can reach device integrity; strong integrity needs a valid, unrevoked keybox.

Good for those that need it, but having seen such solutions multiple times over the past decade, it's a cat and mouse chase that goes on until one of the parties depletes all possible moves. So I'd recommend to those that can, keep looking for more future-proof alternatives before it's too late.