I was mainly thinking of a single method of signing HIVE transactions regardless of the login method. Sorry for the confusion. Let me reiterate.

I can go to PancakeSwap and use MetaMask, Brave Wallet, Trust Wallet, Block Wallet or any other EVM wallet regardless of it being listed as a login method on PancakeSwap. I don't know how this happen on the backend. What I know is that this is not the case on HIVE. I'm wondering if HIVE could be made more or less wallet agnostic.