The same 0x address appearing on two networks does not make their balances one account ledger. The address is part of the destination instruction; the network determines where the transaction executes. Check the complete receiving route before selecting a cheaper or more familiar withdrawal option.
An RPC endpoint is a connection a wallet uses to request network information and submit supported requests. Adding one does not transfer assets or certify the network. Verify its source, network identity and data limitations before relying on a familiar-looking entry in the wallet menu.
A very large token approval may reduce repeated permission requests, but it can also leave broader spending authority than the current task needs. Decide after identifying the token, spender, intended use and review process. A default number is a proposal to assess, not an explanation.
A token allowance is neither an extra balance nor a completed transfer. It defines part of another party's authority to spend a token associated with your account under the contract's rules. Read it together with the owner, network, token contract, spender and current value.
Disconnecting an application does not automatically cancel everything you previously authorized. A website connection can end while a token allowance remains recorded on-chain or a signature remains usable under its terms. Identify the permission first, then choose an action that actually changes that layer.