Actually, everyone understands this—retail investors don't need to study block builders or bundle research to the point of being able to write code... I only focus on two things myself: whether the transaction keeps getting "snatched away," and the fact that the same exchange before and after looks very clean in the mempool, but the slippage results are strange.

As long as you know that a bundle is "packing several steps together into a block," who cuts in line basically depends on how the builder/searcher pairs things;
If you want protection, use protected routing/private sending, don't hard compete in the public queue.
Recently, developers are excited about modularization and DA layer explanations, but users are confused—I understand that too.
To put it simply, when you trade, you only care about: whether your order is publicly queued or goes through a cleaner channel, and the rest... for now, that's it.