Just looked at some discussions about IBC / cross-chain technology, and honestly, you might think "just send a message and it's done," but in reality, it's a process of trusting and signing off: whether the other chain itself is reliable, whether the lightweight client / verification has been tampered with, whether the relay (relayer) is slacking off and cheating you, whether the channel / contract implementation has flaws, and ultimately whether the application correctly interprets the messages... Every link in the chain, if there's a problem, results in my liquidation line dancing in your face.

By the way, the current disputes over privacy coins / mixing compliance are quite similar: everyone is really arguing over "who do you actually trust."
I'm starting with small cross-chain transfers; if the gas fees are high, consider it as buying peace of mind. Don't go all-in at once and then blame the bridge for being untrustworthy.