I'd love to use it especially since Android Auto is working on it, too. The only thing holding me back is not being able to pay with my phone. I'm currently only having my phone and keys with me. So it's extra convenient to not have to take my wallet with me.

But to be fair the devs can't make anything against that restriction as of now. I still wish there would be some way to be able to pay contactless using your card with GrapheneOS.