Recently, people keep asking whether retail investors should learn about block builders, bundles, and related concepts. To be honest, there's no need to memorize the concepts; just understanding that "your transaction may not be included in the block in the order you want" is enough. Especially when you're making large trades on DEXs with loose slippage settings, or when you're just riding the wave of new L1/L2 incentives to boost TVL, the chain is very easy to be packed or front-run, and the final experience often turns into the old user's complaint of "sandwich attacks and front-running"... I’m not surprised.

My approach has always been pretty straightforward: split large amounts into smaller orders, tighten slippage, and set limit prices when possible—no need to rush and eat everything at once.
As for a deeper builder ecosystem, who signed what with whom, I no longer believe that "retail investors learning these can guarantee victory." Knowing the risk boundaries and paying less tuition is enough.