How does CEX make profits from taking minimal processing fee, whereas fees should be going directly to the miners or validators. Just in the case when i spent $4.4 on Tron network while CEX (Bybit) withdrawal fee for same USDT Tron is just $1.
Exchanges have fixed withdrawal fees and they do it because of their retails investors that won’t like price fluctuations when sending out money to another wallet.
Exchanges still make money from their minimal processing fees because they process your transactions into another blockchain you’re using to transfer the money out as combined (batch transactions) and pay the fees at once. They may also have an agreement with the exchange privately on how to settle for transactions coming from them into their blockchain to reduce costs for them.
Lastly, the price of transaction fee for some blockchain is lower than what your exchange may be charging you, so they’ll process the transaction and keep the difference in amount for their own profit. Exchanges can still stake native tokens of an exchange privately using a private wallet, so when processing a transaction through their blockchain it will also reduce cost.
Exchanges are profitable platforms and just because you’re seeing minimal processing fees doesn’t mean they’re not profiting from the transactions.