Recently, I've seen everyone talking about data availability, ordering, finality... a bunch of terms.

Actually, I just focus on one point: when you think "the transaction has been completed/credited," who really makes the call, and how long does it take to truly settle?
Ordering determines your position (sometimes missing by just one slot leads to slippage or being front-run), data availability decides whether you can verify afterward or run nodes to reproduce, finality is about not getting a rollback in the middle of the night.
In simple terms, it's similar to risk control logic: don't treat "seeing" as "certainty."

In the past couple of days, before and after that mainstream chain upgrade, everyone in the group was guessing whether the ecosystem would migrate.
I'm actually more concerned about: don't rush into conflicts over bridges, exchanges deposits and withdrawals, or on-chain confirmations.
Losing a bit less is okay; don't get stuck halfway and blow your mental state.

I'm willing to take an extra step for security, even if it's simple: for large transfers, I prefer to wait a few more minutes, pay a bit more in fees, do a small test transaction first, and confirm the route is good before increasing the position.
It's troublesome, but just staying alive is enough.