You mean like getting robbed? Online escrow won't help with that.
Maybe people who use new metaverse virtual thing would need to use some kind of special escrow approved by Mark Suckerberg, when they meet in virtual space.
Or to use a multi-sig wallet...? So, in any case, you will need at least two parties involved for moving funds.
That is fine and good option for Bitcoin, but I am not sure that multisig would be so easy in case of altcoins like monero.
I can only imagine explaining everyone how to use multisig, as I bet that most of the people never even tried it with testnet let alone mainnet.