Someone asked me whether retail investors need to understand blockchain builders, and to what extent they should bundle... I think there's no need to push yourself to become an engineer. Just remember one thing: when you click "swap/mint/claim airdrop," the transaction may not be included in the block in the order you expect; it could be re-queued by the "bundler," so don't blindly trust the quotes and slippage hints you see.

For ordinary users, enough is: 1) Don't go naked on large transactions; use split orders and limit orders when possible; 2) Don't interact casually with unknown contracts, especially during the period when new L1/L2 projects are incentivizing TVL, "mining, selling" back and forth can make you rush in, and granting unlimited permissions... that makes my scalp crawl; 3) Remember to revoke permissions you don't often use after each interaction—losing money is one thing, having your wallet drained is another.

Honestly, understanding the existence of bundles and knowing how to reduce the chances of being front-run or exploited is enough; don't spend all your energy chasing those details beyond your control.