I have a "junk" Google account on my phone. It's not linked to anything except my phone. I don't even know the account name.
It means I can't use in-app payments, and will never pay for an app, but at least I can download essential (to me) apps like banking apps from the Play store.
oh. why dont you try aurora store? that app allows you to download actual play store apps which is what i use. it uses anonymous google accounts to login and give you access.