Can someone explain to what exactly this transaction is? (Hash in Description)

The transaction hash is 0x83c48dbcaba55c0a6852fb7f21b04e56e6b316c00ceb5ab6234e7c699c719beb …. my portfolio tracker is showing a transaction that I sent USDT early this morning, though I didn't send any USDT to any other wallet this morning I only received USDT. On etherscan the TXN Type is displayed as 2 (EIP-1559), I don't really understand what that means, I looked it up but am too stupid to understand it I think. I THINK that the funds are NOT actually missing from my account, though honestly I don't remember how much USDT I had before the transaction showed up. Any help is GREATLY APPRECIATED. I will literally pay someone to tutor me on this stuff, I am pretty lost. THANK YOU, EVERYONE!