Not all transactions have multiple outputs as some deplete the UTXO with no remainder. The 2 single output transactions you mentioned are Bitcoin NFT mints. Their senders only care about including their data in a bitcoin block, they don't really care about the small value of the UTXO output being sent, that's why the overwhelming portion of transaction value is just miner fees.
The 3rd transaction you included is an ordinary bitcoin transaction that sends value.
There's nothing decentralized about FTX or Binance. They operate in an opaque manner like any traditional business, transparency comes from forced audits
& regulation.
Decentralized finance is built on chain where all assets are publicly auditable at all times.
EDIT: parent comment talked about decentralized finance, then edited to remove mentions of defi
The 3rd transaction you included is an ordinary bitcoin transaction that sends value.