DAPP flow and use cases

[Dilosen]

I am trying to understand some use cases into the DappButtons.cs and other modal scripts, but I see it's constructed for the EVM environment. Would it be possible to intergrate other networks without breaking the codebase or does it currently automatically detect the usecase?

What I mean by this:

'personal sign'/OnTransactionButton() sends the methods we stipulate i.e. "sign_txn"(algorand) in place of the EVM options when the user chooses their preferred wallet/network. So does gas fees become 'fees' in general and the

   var request = new EthSendTransaction(new Transaction()
            {
                From = address,
                To = address,
                Value = "0"
            });

does this also allow for other networks to process the same transaction type? from/to/amount as "send transaction"

I'm trying to figure out, how post successful wallet connection, the player would then interact with the wallet/modal for the rest of the session as well as interact with backends for smart contracts.