Just exchanged a small amount on DEX, and during the few seconds of watching the transaction go through, I suddenly thought: How much do retail investors really need to understand to be sufficient? Terms like block builders and bundling sound very technical, but honestly, you only need to know two things: first, your transaction might be prioritized when "bundled," and second, the quote you see isn't always the price you can actually get, especially when liquidity is thin.

As for how to respond, there's no need to study becoming a builder: use limit orders / reduce tolerance for slippage, don't blindly rush into pools with poor depth, split orders, switch routes (try multiple times with aggregators), that's basically enough. The on-chain data tools' tagging system has recently been criticized for lagging and potentially misleading… so I now trust my own testing more: trying the same transaction with different routes and seeing how much the execution price varies at a glance. Anyway, just focus on "not getting sandwiched, not getting slipped" first, and everything else can be figured out gradually.