Looking at everyone arguing over TPS, fees, and subsidies between L2s, I'm actually more worried about the cross-chain bridge you use at the moment you transfer from A to B. Bridges, to put it simply, are "someone or a set of rules vouching for you." Who signs the multi-signature, whether the oracle data is reliable, who can stop or compensate if something goes wrong—if you don't understand these, saving a few fees isn't worth the sleepless nights.

My current cross-chain approach is basically twofold: avoid crossing if possible; if crossing is unavoidable, do small batch transfers, and prefer to wait for multiple confirmations. Waiting for confirmation may seem like a waste of time, but at least it gives you a chance to spot anomalies and prevents small probabilities like reorganization or rollback from hitting you directly... Anyway, asset survival is the top priority; slow down if needed.