I tried once to cross from L2 back to the mainnet, and it got stuck on the "Waiting for confirmation" page for a long time, my hand itching to resend... Later I realized: bridging isn't as simple as a transfer, in the middle you have to see if the multi-signature parties sign or not, whether the oracle data is correct, any small issue in any link can turn it into "in transit." That time I just endured and didn't move, willing to go slower rather than risking bigger problems by rushing and repeatedly authorizing/retrying. Recently I saw some mainstream public chains upgrade and people guessing whether projects will migrate, so I’m even more cautious about bridging randomly. Anyway, I’m just practicing with small positions, waiting until the confirmation is complete before proceeding.