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.
All those EVM wallets are working with Eth tokens. All the things you listed are just the ETH version of the same problem - keychain/hivesigner/peaklock/hiveauth equivilants.
So I hear ya, but hive is "wallet agnostic" already in that way. As long as its a hive enabled wallet. Just like those others are if they are an Eth enabled wallet.
Thank you for clarification.